A diagram in which several generations of a family and the occurrence of certain genetic characteristics are shown is called a.
Answers
A diagram in which several generations of a family and the occurrence of certain genetic characteristics are shown is called a pedigree.
A pedigree is a visual representation of a family's genetic history that illustrates the inheritance patterns of specific traits or diseases across multiple generations. It typically includes symbols to represent individuals, lines to connect generations, and shading or color coding to indicate the presence or absence of particular traits or conditions. Pedigrees are valuable tools in genetics research and can help analyze the inheritance patterns, track the transmission of genetic disorders, and identify carriers or individuals at risk for certain genetic conditions. By examining the patterns within a pedigree, geneticists and healthcare professionals can gain insights into how traits are passed down and make predictions about the likelihood of specific traits or conditions appearing in future generations.
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Wildebeests: A Keystone Species Use the data provided to answer the question below in CER format. Make sure to use at least two pieces of evidence to claim and provide reasoning.
FIRE! Fire is actually an important component of savanna ecosystems. Fire kills young trees and seedlings, reducing the number of big adult trees that grow over time. Since trees compete with grasses for light and soil moisture, fire actually helps the grasses and keeps the savannas open. Dr. Rico Holdo, a professor at the University of Missouri, and his colleagues modeled and wrote about the interactions of fire, rain, grasses, trees, and the various animals in the Serengeti. The interactions get complicated quickly, but I’ll try to give you a run-down of how they see fire acting in this ecosystem. First, as I’ve mentioned, fire suppresses trees and encourages grasses. If you have both fire and rain, but no animals, then something interesting happens: the rain encourages the trees, but it encourages the grasses, too. As the grasses get taller, there is more fuel for fire, and the fires become more widespread and more damaging. These fiercer fires really hurt the trees – in fact, the damage from fires (because of more rain) is more important than the extra boost the trees get directly from the rain. So more rain actually means fewer trees. With me so far? We’re now going to throw animals into the mix – well, at least some of the animals. Let’s talk about the grazers. The grazers eat the grass, and this reduces the fuel available to fire. If you have a lot of grazers, like we do in the Serengeti, the grass height is reduced a lot. That means fewer fires and that rain once again helps the trees. Further, many of the grazers are migratory and move around the landscape a lot. They don’t eat the savanna grasses in a neat, tidy, organized way. Instead, they create a patchy mosaic of grass heights, and with those different grass heights come different susceptibility of patches of grass to burn. With rain and fire and grazers, we now have a landscape of grasses of different lengths, patchy fires, and some areas dense with trees and some areas with fewer trees. All that variation means more diversity – more diversity of the grasses, plants, and trees, and more diversity of the animals that rely on them. All that diversity is due, in part, to fire.
A Keystone species is a plant or animal that plays an important and unique role in how the ecosystem functions without the key stone species to ecosystem would be very different. One scientist identified Keystone specie it to look as how changes to their abundance (number ) affect other organisms. Often, there are many indirect effects of changes to ecosystems.
Claim The wildebeest in the Serengeti are a keystone species.
What evidence supports this claim? (Make sure to provide reasoning)
Answers
Which of the following can be made into crystal? (a) A bacterium (b) An Amoeba (c) A virus (d) A sperm
Answers
Answer:
C
Explanation:
Virus can remain outside the host as a non-living entity in the form of a Crystal
Which is not part of the function of the normal cell cycle? (A) cell growth (B) DNA replication (C) cell division (D) cell death
Answers
Explanation:
The original cell is divided into two new cells(After mitosis). Therefore, each new cell has a complete set of chro- mosomes (DNA) as well as half the organelles from the original parent cell.
Cell death is not part of the function of the normal cell cycle, a strictly controlled cell mechanism known as programmed cell death, or apoptosis, hence option d is correct.
What is cell death?Eliminates cells that are no longer required or pose a hazard to the organism in multicellular creatures.
The body's mechanism of cell death is crucial. When cells are not required, as at some developmental phases, for example, they are removed.
For instance, the outer layer of the skin is formed of dead cells, which form a structure in the body that is also apoptosis.
Therefore, cell growth, DNA replication, cell division are part of the cell cycle, a controlled cell death mechanism known as programmed cell death, or apoptosis, hence option D is correct
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Why are there usually few organisms at the top of an energy pyramid?
A only so many will fit in a pyramid drawing
B So much energy is lost from one level to the next that the energy available can only support a few
organisms at the top are larger and require more living space
Dhumans hunt for organisms at this level
Answers
Answer:
Explanation:
The number of organisms near the top of the energy pyramid is usually small, because most of the energy produced is lost due to factors such as exercise and heat. This energy loss occurs multiple times when passing through the pyramid, forcing consumers near the top to require more food. This creates a pyramid with the third consumer at the top and the producer at the bottom.
What tools would a biologists use to grow bacteria
Answers
Bacteria are everywhere, and since they reproduce rapidly they are easy to study with just a few simple materials. Biologist uses Petri dishes, agar, sterile swabs or an inoculating needle to grow bacteria.
Biologist
A scientist who studies biology is known as a biologist. Whether it be a single cell, a multicellular organism, or a group of interdependent populations, life on Earth is of interest to biologists. They typically have a particular research emphasis and specialise in a certain area of biologies, such as molecular biology, zoology, or evolutionary biology (e.g., studying malaria or cancer).
The goal of basic research conducted by biologists is to increase our understanding of the natural world. They use the scientific method, an empirical approach to evaluating theories, to conduct their research. Their discoveries could be valuable for a particular objective, like biotechnology, which aims to create human-useful medical items.
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A student compared diploid chromosome numbers of several species with their genome size. Which of the conclusions about the chromosome number and genome size is true?
#1
The size of the genome cannot be deduced from the number of chromosomes.
#2
The more chromosomes, the smaller the genome size.
#3
The bigger the genome size, the more chromosomes.
#4
The size of the genome is proportional to the number of chromosomes.
Answers
Answer:
The size of the genome cannot be deduced from the number of chromosomes.
Importance of having your child vaccinated
Answers
Hope this helps :)
Which of the following describe ways septic tanks potentially contaminate drinking water?
I. Using septic tanks in rural areas
II. Rising sea levels near coastline septic tanks
III. Leaks from septic tanks into groundwater
I and II
II and III
I and III
I, II, and III
Answers
Septic tanks contaminate drinking water by:
I. Using septic tanks in rural areas
II. Rising sea levels near coastline septic tanks
III. Leaks from septic tanks into groundwater
From the question above, options I, II, and III are right.
Septic tanks are watertight containers that allow solid to settle down to the bottom of the container leaving only the less dense liquids to float, making it a strategic water treatment method that enables wastewater used in homes to be treated relying on the action of bacteria to decompose the solid waste.
Septic tanks have a minimal environmental impact as natural filtering takes place in the soil, but they do require some degree of maintenance and attention, as you can't pump wastewater to a water treatment facility.
Using septic tanks in rural areas potentially contaminates the drinking water in that area because rural areas are characterized by not too well-established water systems. Mostly in rural areas, water sources are from wells, rivers, streams, so if a septic tank is too close to a drinking water well, or any drinking water body such as streams, rivers. Water contaminants from the wastewater can end up in drinking water.
Rising sea levels near coastline septic tanks can also potentially contaminate the drinking water in that area because septic tanks are affected by increase in water levels such as the one caused by heavy rainstorms. This occurrence makes it difficult for soil to treat the wastewater from the septic tank before it reaches the groundwater thereby contaminating the drinking water source.
Leaks from septic tanks into groundwater can contaminate the drinking water in that area because if a septic tank is clogged or has a high volume of water, this may saturate the ground with sewer water, so once there is a leakage, it could lead to contamination of any nearby water source because this contamination moves into groundwater, which makes it unfit for drinking due to the pathogenic germs.
In summary, Septic tanks contaminate drinking water when septic tanks are used in rural areas, when there are rising sea levels near coastline septic tanks, and when there are leaks from septic tanks into groundwater.
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3. Genetic ablation of tau in postnatal neurons rescues decreased adult hippocampal neurogenesis in a tauopathy model
Answers
The required answer is Neurogenesis increases.
Neurogenesis:
Alzheimer's disease and other tauopathies have been linked to impaired adult hippocampal neurogenesis, which may be a factor in these diseases' learning and memory deficits. We examined adult neurogenesis in the hippocampal dentate gyrus of wild-type mice, Tg30 mice expressing an FTDP-17 mutant tau, and the same Tg30 mice deficient for mouse tau (Tg30/tauKO) in order to determine the impact of tau pathology, a frequent key-lesion in these diseases, on adult hippocampal neurogenesis. Unbiased stereological techniques were used to measure the density of the granular layer, the number of granule cells, and the number of neuronal precursors expressing the immature markers DCX or 3R-tau in the dentate gyrus (DG). It was also examined how neurogenic markers co-localized with human mutant tau.The volume of the granular layer and the number of granule cells were significantly reduced in mutant tau Tg30 mice, but not in Tg30/tauKO animals. The number of cells expressing the proliferation marker Ki-67 and the number of neuronal precursors displaying the immaturity markers DCX or 3R-tau (the latter only expressed in wild-type and Tg30 mice) in the neurogenic sub granular zone of the DG were decreased in Tg30 but not in Tg30/tauKOmice.In comparison to Tg30 mice, Tg30/tauKO mice had reduced levels of soluble human phosphate and phosphate-positive cell density in the DG. In Tg30 and Tg30/tauKO mice, the human mutant tau was expressed in adult granule cells but not in Sox2 positive neural stem cells, DCX positive neuronal progenitors, or immature newborn neurons. These findings show that adult hippocampus neurogenesis is impaired in tau FTDP-17 mutant mice due to a reduction in proliferation that affects the pool of neural progenitors.These mutant tau animals did not express mutant tau in precursor cells, indicating that this neurogenic defect is not cell-autonomous. As this decreased adult neurogenesis was restored by reducing tau expression in Tg30/tauKO mice, it is interesting to note that expression of endogenous wild-type tau in mature granule cells was required to see this harmful effect of human mutant tau. These findings imply that human tauopathies also reduce adult hippocampal neurogenesis through the development of tau pathology in dentate gyrus granule cells by inhibiting proliferation of neural progenitors, and that reducing tau expression may be a way to reverse this impairment.Learn more about neurogenesis here brainly.com/question/24500582
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Identify a country where the age profile of the population and the incidence of HIV/AIDS are most likely to make it difficult for that society to care adequately for the young people.
Cote D’Ivoire
Tanzania
Angola
Uganda
Answers
Uganda is a country where the age profile of the population and the incidence of HIV/AIDS make it challenging for society to adequately care for young people. The combination of a high youth population and a significant HIV/AIDS burden places a strain on Uganda's resources and social systems.
Uganda has a relatively young population, with a significant proportion of the population being under the age of 18. This puts pressure on providing adequate education, healthcare, and social support systems to meet the needs of the young population.
Furthermore, Uganda has been severely affected by the HIV/AIDS epidemic. The country has experienced high prevalence rates, and the impact of the disease has resulted in increased mortality rates and a significant number of orphaned children. The loss of parents due to AIDS-related illnesses leaves many young people without proper family support and exposes them to various vulnerabilities.
The combination of a large youth population and the burden of HIV/AIDS makes it challenging for Uganda to adequately care for its young people. It requires comprehensive efforts in healthcare, education, social services, and support networks to address the unique needs and challenges faced by young individuals affected by the HIV/AIDS epidemic.
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Which is an unseen factor that affects the carrying capacity of the ocean?(1 point)
Answers
Sunlight is an unseen factor that affects the carrying capacity of the ocean.
What is Carrying capacity?Carrying capacity may be defined as the maximum number of individuals that can be supported by a habitat.
The other options under this question are water chemistry, water availability, space, and sunlight.
Water availability and space both are unlimited in the ocean habitat, while the water chemistry remains the same throughout the ocean.
Therefore, sunlight is an unseen factor that affects the carrying capacity of the ocean.
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T/F: bote sign molluscum contagiosum mistaken for staph infection
Answers
False. Bote sign molluscum contagiosum is not mistaken for a staph infection.
Molluscum contagiosum is a viral skin infection caused by the molluscum contagiosum virus (MCV). It manifests as small, flesh-colored or pink bumps on the skin. These bumps are typically smooth and have a central dimple or indentation, giving them a characteristic appearance called "molluscum bodies" or "molluscum bodies sign."
On the other hand, a staph infection refers to a bacterial infection caused by Staphylococcus aureus bacteria. Staph infections can present as various skin conditions, including boils, impetigo, cellulitis, and abscesses. These infections typically appear as red, swollen, painful lesions that may contain pus.
While both molluscum contagiosum and staph infections can affect the skin and cause bumps or lesions, they have distinct characteristics that can help differentiate between them. Molluscum contagiosum lesions have a characteristic central dimple, while staph infections often present as red, inflamed, and painful areas.
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What are the possible consequences of genetic mutations?
1. Incomplete Protein
2. Poorly functioning protein
3. No change
4. Cancer
on-
0 1-4
O 3
O 1 & 2
04
O 2
O 1, 2, & 4
Answers
Answer:
1-4
Explanation:
Genes code for proteins through transcription and translation. Each three nitrogen base sequence of a gene encodes for a specific amino acid. The long chain of amino acids come together to form a protein Mutations to genes can cause coding of incomplete proteins, poorly functioning proteins, no change or cancer.
The answer please answer will give brainliest
Answers
Answer:
hi there person :)
A feral cat needs to eat two mice a day to survive. A mouse needs to eat 5 seeds a day to survive. How many seeds are required to feed a feral cat for a week (7 days)?
Answers
Answer:
70 seeds
Explanation
5 is the food for a mouse (day)x2 mice for cat=10. 10x7(week)=70 seeds
hope this helps!
Which of the following could be considered a reliable source of science information
Answers
Answer:
need more discription
Explanation:
but make sure that an source is credible for example there will be bias information on the internet
The correct answer is A
Reliable source is one that provides thorough, well-founded theory, reasoning, discussion, etc. based on strong evidence. Scientific, peer-reviewed articles or books - written by researchers for students and researchers. Original research, extensive bibliography.
What do you mean reliable source of science information?• A reliable source is one that provides thorough, well-founded theory, reasoning, discussion, etc. based on strong evidence.
• Scientific, peer-reviewed articles or books - written by researchers for students and researchers.
• Original research, extensive bibliography.
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What do you call something that is repeated throughout a work?
OA a mout
B. a symbol
Oc a figure of speech
D
consonance
Answers
What is the maximum magnification of most classroom compound light microscopes?
100x?
500x?
1000x?
5000x?
Answers
Answer:
1,000×
Magnification. The actual power or magnification of a compound optical microscope is the product of the powers of the ocular (eyepiece) and the objective lens. The maximum normal magnifications of the ocular and objective are 10× and 100× respectively, giving a final magnification of 1,000×.
Explanation:
Brainliest please?
A and b are linked genes. in a study of 100 offspring, 94 had parental genotypes for a and b, while 6 were recombinants. a and b are _____ map units apart.
Answers
In the study, out of 100 offspring, 94 had parental genotypes for genes A and B, while 6 were recombinants. This means that 6% of the offspring had a combination of genes that differed from the parental genotypes.
Since recombination occurs when genes are separated during the formation of sex cells, we can use the percentage of recombinants to estimate the distance between genes A and B.
One map unit, also known as one centimorgan (cM), represents a 1% chance of recombination occurring between two genes. Therefore, if 6% of the offspring are recombinants, it suggests that genes A and B are 6 map units apart on the genetic map.
In conclusion, based on the study of 100 offspring, where 94 had parental genotypes for genes A and B and 6 were recombinants, it can be estimated that genes A and B are approximately 6 map units apart.
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the end‑replication problem (telomere problem) exists in eukaryotic chromosomes and is characterized by the chromosomes shortening with each round of dna replication.
Answers
Each replication cycle results in an incomplete replication of the DNA near the extreme end of the chromosome, gradually shrinking the chromosome.
What is the root cause of the eukaryotic chromosome end replication problem?Eukaryotes have linear, rod-shaped chromosomes that have ends as opposed to bacteria, which have circular chromosomes. DNA replication is difficult as a result of these ends. Each replication cycle results in an incomplete replication of the DNA near the extreme end of the chromosome, gradually shrinking the chromosome.
What specifically is the replication issue at the telomere end?Telomeres shorten as a result of regular DNA polymerases' incomplete copying of linear DNA molecules during cell division. The end replication problem is the name given to this [6]. The process of resection and fill-in that occurs during the synthesis of the telomere leading-strand is mostly to blame for this.
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What is the nature of work done by genetic counselors?.
Answers
Answer:
Genetic counselors work as members of a healthcare team, providing risk assessment, education and support to individuals and families at risk for, or diagnosed with, a variety of inherited conditions. Genetic counselors also interpret genetic testing, provide supportive counseling, and serve as patient advocates.
A spongelike, brown material is ______. It is made of partly decomposed plants.
A) biomass
B) ethanol
C) geothermal
D) geyser
E) peat
Answers
Answer:
E. Peat
Explanation:
Peat is decomposed plants that can be used for fuel.
Answer- E) peat
Hope this helps
motor proteins are responsible for moving vesicles and organelles within the cell. motor proteins move along protein "tracks." in the example shown in the visualizing figure, what are those tracks made of?
Answers
Answer:
actin
Explanation:
How are the different types of fibrous connective tissue distinguished from one another?
Answers
The different types of fibrous connective tissues are distinguished from one another based on their specific structural characteristics, composition, and functional properties.
Here are the three main types of fibrous connective tissue and their distinguishing features:
1. Collagenous Connective Tissue:
Composition: Collagen fibers are the predominant component of collagenous connective tissue. These fibers are made up of collagen protein.Structure: Collagen fibers are thick, strong, and arranged in parallel bundles, providing tensile strength and resistance to stretching.Examples: Tendons, ligaments, and the dermis of the skin are composed mainly of collagenous connective tissue.2. Elastic Connective Tissue:
Composition: Elastic fibers are the distinguishing feature of elastic connective tissue. These fibers are made up of elastin protein, which allows them to stretch and recoil.Structure: Elastic fibers are thinner than collagen fibers and form branching networks. They provide elasticity and recoil to tissues.Examples: Elastic connective tissue is found in structures like the walls of large arteries, the vocal cords, and certain ligaments.3. Reticular Connective Tissue:
Composition: Reticular fibers, composed of collagen protein, are the primary component of reticular connective tissue. These fibers are thinner than collagen fibers.Structure: Reticular fibers form a loose network or mesh-like arrangement. They provide structural support and act as a framework for organs like the liver, spleen, and lymph nodes.Examples: Reticular connective tissue is abundant in lymphoid organs and bone marrow.In addition to these primary types, there can be variations or combinations of these tissues in certain locations. For example, dense irregular connective tissue contains collagen fibers that are arranged in a more irregular pattern compared to collagenous connective tissue.
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The effect of high blood ph (alkalosis) on the respiratory centers in the brain is/are?
Answers
Answer:
Whenever the blood's acid-base equilibrium is affected by increasing quantities of carbon dioxide, pulmonary alkalosis results. People who have fast, uncontrolled breathing regularly face it (hyperventilation). Treatments that reduce the chance of hyperventilation are a component of the therapy. Alkalosis leads to cerebral vasoconstriction, which as a result decreases the brain's processing power and likely contributes to misperceiving and misreading. Hyperventilation is a subsequent disease to respiratory alkalosis. The most common causes of hyperventilation include shocks like hypoxia, metabolic acidosis, discomfort, stress, or a rise in metabolic demand. The body mostly uses the lungs to make up for both acidosis and alkalosis. When we breathe, the lungs let a certain amount of carbon dioxide leave, which alters the overall alkalinity of our blood. Additionally, the kidneys contribute by regulating the release of bicarbonate ions.
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A stream originates at the...
headwater
estuary
mouth
spring
Answers
have a great day :)
In this exercise, you've learned of dna profiling and its practical benefits in forensic science. genome editing is another area of importance that is widely popular in today's society. after watching video 2 of 3, how does this technique differ from the profiling method, and what are the advantages of editing our genetic sequences? (answer should be more than two sentences)
Answers
In genome editing, the individual gene is altered, whereas in profiling there will be no alteration.
What is DNA profiling?DNA profiling involves analyzing the individual's genome for distinctive patterns of DNA sequences. Forensic sciences, it is frequently employed.
- STR patterns are widely focused.
- A polymerase chain reaction is used to multiply the sample provided along with the STR sequences.
- This DNA profiling also makes it possible to identify parents.
What is Genome Editing?Genome editing involves altering an organism's DNA.
- The genetic material could be added, altered, or removed through this genome editing.
Genome editing differs from the profiling method. In genome editing, the individual gene is altered, whereas in profiling there will be no alteration.
The advantages of editing our genetic sequences are:
- treatment of diseases,
- development of transgenic foods,
- development of disease-resistant crops,
- Life span expansion
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salivary amylase begins chemical digestion of which nutrient in the mouth?
Answers
The enzyme salivary amylase begins the chemical digestion of a nutrient in the mouth that is known as Starch.
Which nutrient is digested by salivary amylase?The enzyme salivary amylase digests the nutrient that is known as Starch. Saliva in the mouth consists of special enzymes that assist in the digestion of the starches in your food.
An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb.
Amylases significantly digest starch into smaller and smaller molecules which ultimately yield maltose. This maltose is finally cleaved into two glucose molecules with the help of the enzyme maltase. Starch comprises a significant portion of the typical human diet for most nationalities.
Therefore, the enzyme salivary amylase begins the chemical digestion of a nutrient in the mouth that is known as Starch.
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Your question seems incomplete. The most probable complete question is as follows:
Salivary amylase begins chemical digestion of which nutrient in the mouth?
Cellulose.Starch.Lipids.Fats.Why is the sugar-phosphate backbone important?
Answers
Sugar phosphate backbone of a DNA gives it a definite structure and prevents the DNA from collapsing.
The double helix structure of DNA's sugar-phosphate backbone is crucial. DNA's function and structure are related. The capacity of DNA to store and transmit genetic information is greatly influenced by the pairing of the nitrogenous bases that are joined to the sugar-phosphate backbone. The nucleotides in a DNA sequence are joined by an alternating grey-dark grey sugar-phosphate backbone. This molecule's directionality is determined by its backbone, which is made up of alternating sugar and phosphate groups.
The bases of DNA and RNA may build proteins and be passed on to new cells thanks to the structure of these molecules, which is maintained by the phosphate and sugar groups. As intermediates in the metabolism of carbohydrates, sugar phosphates, which are phosphoric acid esters of monosaccharides, are produced. Ribose phosphate and deoxyribose phosphate, two of these substances, are components of nucleotides and nucleic acids.
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_____ organisms are the product of artificial selection a
freshness and disease resistance.
Answers
Artificially selected organisms are the product of artificial selection a
freshness and disease resistance
Artificial selection explained.
Artificial selection, also known as selective breeding, is the process by which humans intentionally choose certain organisms with desirable traits and selectively breed them to produce offspring with those traits. This process is often used in agriculture and animal husbandry to create new varieties of crops or animals with desired characteristics, such as increased yield, disease resistance, or improved flavor.
Organisms that are the product of artificial selection for freshness and disease resistance are typically agricultural crops and livestock. Farmers and breeders use selective breeding techniques to produce crops and animals that have desirable traits, such as resistance to disease, improved yield, or better taste. This process involves choosing individuals with the desired traits and breeding them to create offspring that inherit those traits.
Over time, this can lead to the development of crops and animals that are better adapted to the needs of farmers and consumers.
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