How can DNA evidence be used to show that all living things share common ancestry?
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Answer:
idontknbiow
Explanation:
Related Questions
Which would be the least likely to survive?
a) Trisomy 1
b) Trisomy 23
c) Monosomy 23
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after conjugation, the donor bacterium generally retains a copy of the genetic material that has been transferred, making conjugation a(n) process.
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After conjugation, the donor bacterium generally retains a copy of the genetic material that has been transferred, making conjugation a(n) process. Conjugation works to transfer genetic material between bacteria.
What is Conjugation?Conjugation is a process by which genetic material is transferred from one bacterium to another. During conjugation, two bacterial cells come into contact with each other and transfer genetic material through a sex pilus. This genetic material can include plasmids or other extrachromosomal DNA that are not part of the bacterial chromosome.
After conjugation, the recipient bacterium will have acquired a copy of the genetic material that was transferred. However, the donor bacterium also retains a copy of the genetic material, which makes conjugation a process of genetic exchange rather than simply a one-way transfer. This means that both the donor and recipient bacteria can benefit from the genetic material that is exchanged during conjugation.
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Study this diagram of a flowering tree's life cycle. What is the error in the diagram? stage 1 stage 2 Life Cycle of a Tree stage 5 7 stage 4 stage 3 OA. stage 1 OB. stage 2 O C. stage 3 OD. stage 4 O E. stage 5
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Answer:
C. stage 3
Explanation:
Took the test
Intrusive igneous rock has a well
developed, course-grained texture.
Which of the following is accurate about
this type of igneous rock?
A. It is made from sediments.
B. It is made from lava that cools quickly.
C. It is made from magma that cools slowly.
hip.
D. It never solidifies.
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The accurate statement about intrusive igneous rocks is: (C) It is made from magma that cools slowly.
Igneous rocks are also called the magnetic rocks. They are formed by the cooling down and crystallization of the magma. These are further of two types: intrusive and extrusive. Polished granite is made from igneous rocks that is very commonly used to make the kitchen counter-top.
Magma is the extremely hot molten lava present in the mantle layer of the Earth. This magma when goes deep inside the Earth's crust layer, it causes volcanic eruptions. The magma is formed due to the meting of rocks.
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Research Ouestion: How do breathing (ventilation) and pulse rates respond
to exercise?
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freshwater lakes of temperate zones of europe and north america are mostly of glacial origin. which statements about these lakes are correct? since their origin, these lakes undergo a succession, transform into bogs, and eventually disappear they are approximately 10-15 thousand years old a transition from oligotrophic to eutrophic state in these lakes only occurs naturally as watershed become more productive, while human impact cannot change the state many of the glacial lakes have already disappeared or became bogs or wetlands all seasonal changes in phytoplankton communities of these lakes are autogenic they are approximately 10-15 millions years old
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The correct statements about freshwater lakes of temperate zones of Europe and North America that are mostly of glacial origin are:
They are approximately 10-15 thousand years old: These lakes were formed by glacial activity during the last ice age, which ended around 10-15 thousand years ago.
A transition from oligotrophic to eutrophic state in these lakes only occurs naturally as the watershed becomes more productive, while human impact cannot change the state: The trophic state of a lake refers to its nutrient and productivity levels. These glacial lakes naturally undergo a succession from oligotrophic to eutrophic state as the surrounding watershed becomes more productive and nutrient-rich, but human impact can accelerate this process.
Many of the glacial lakes have already disappeared or became bogs or wetlands: Due to natural processes and human impact, some of these glacial lakes have disappeared or transformed into bogs or wetlands over time.
All seasonal changes in phytoplankton communities of these lakes are autogenic: The seasonal changes in phytoplankton communities of these lakes are largely driven by internal biological processes (autogenic), rather than external factors like temperature or nutrient inputs (allogenic).
Therefore, these lakes are relatively young and undergo natural successions in trophic state, but can also be impacted by human activities leading to accelerated eutrophication or other changes. Some of these lakes have also disappeared or transformed into wetlands or bogs, and their phytoplankton communities undergo seasonal changes driven by internal processes.
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Explain the process of sourdough bread making based on cellular respiration and enzyme activity. Please include the roles of yeasts, bacteria, enzymes, and the products of cellular respiration in the answer.
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The course of fermentation, enzymes inside the flour split the starch into smaller, easier-to-digest pieces, releasing sugars for use by yeasts and bacteria. which produce carbon dioxide, acids, or alcohol as byproducts.
What function does fermentation provide in bread?While the dough ferments, carbon dioxide is created and trapped as microscopic air bubbles. It increases as a result. The expansion of carbon dioxide during baking allows the loaf to rise higher.
How does the respiration process in cells compare to sourdough bread?Cellular respiration, a procedure used by the yeast within your bread, involves the conversion of glucose to ATP as well as carbon dioxide. This gas is created by the yeast, and when the bread rises, the gas is incorporated between the flour.
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Erwin Chargaff's research determined the percentage of the nitrogen bases within a strand of DNA. His work determined thatthe concentration of adenine is twice the concentration of thymine and the concentration of cytosine is twice the concentration of guanine.the percent of adenine is equal to the percent of guanine and the percent of cytosine is equal to the percent of thymine.the percent of adenine is equal to the percent of thymine and the percent of cytosine is equal to the percent of guanine.the concentrations of adenine, thymine, guanine, and cytosine are all equal.
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Erwin Chargaff's research determined the composition of the nitrogen bases within a strand of DNA. His work determined that DNA composition varies, but the amount of adenine is always the same as thymine and the amount of cytosine is always the same as guanine. Chargaff also found that the composition of DNA varied from one species to another.
We can conclude that the correct answer is:
Answer:the percent of adenine is equal to the percent of thymine and the percent of cytosine is equal to the percent of guanine.Most plant growth takes place in the ____________________ of the root
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Answer: Primary Growth
Most primary growth occurs at the apices, or tips, of stems and roots.
Explanation:
please help i’m stuck once again
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Answer:
Gringo
Explanation:
The Main Value of the Flower to the Plant is for...
Adaptability for Sunlight Harvesting
Sexual Reproduction
Glucose Attraction
Water Storage
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A number of genetic networks are linked to the growth and withering of plants, flowers, and fruits, and the phytohormone ethylene is important.
What benefit do flowers provide in terms of adaptation?Many plants have evolved flowers as a means of producing seeds for the germination of new plants. Some flowering plants attract insects with their vibrant petals and sugary liquid known as nectar. Visiting insects aid in spreading honey among flowers so that seeds can develop.
What benefit does sexual reproduction have for plants?Sexual reproduction results in variable offspring, which gives populations diversity and variance. It is crucial for plants because it gives variation to the offspring, which aids in improved survival, enables it to become distinctive within the species, and helps it get rid of undesirable genes.
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Along the Mid-Atlantic Ridge, which runs North and South down the middle of the floor of the Atlantic Ocean, magma pushes up from beneath the earth’s crust, forcing plates apart. The Mid-Atlantic Ridge is an example of a ______________.'
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Please hurry i will mark you as brainleist!! A hypothesis is a possible answer or explanation to a scientific question based on
A. scientific laws and research that are testable.
B. scientific theories that are testable.
C. prior knowledge or research that is testable.
D. scientific laws and theories that are testable.
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Please help me im stuck on this question!!! Please hurry !!
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Answer:
one of the smallest stars
Explanation:
there are trillions of stars and most of them are millions of times the size of our sun
E FilI in the blanks :
1. Carbon dioxide is released during the process of_.
2. Exchange of gases in plants takes place through the cracks in bark is_.
3. Yeast undergoes_
respiration
4. The final products obtained in the anaerobic respiration are_,_,_.
5._ is the energy currency of the cells.
6. The breathing and respiration in woody stem of a plant takes place through_.
7. During Marathon race, we sometimes get painful contractions of leg muscles due to the accumulation of_.
8. The process of respiration which releases energy takes place inside the cells of the body is known as_.
9. The mechanism by which organisms obtain oxygen from air and release carbon dioxide is called_.
10. Seat of respiration is_.
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Answer:
1. Carbon dioxide is released during the process of cellular respiration
2. Exchange of gases in plants takes place through the cracks in bark is Lenticel
3. Yeast undergoes aerobic respiration
4. The final products obtained in the anaerobic respiration are lactic acid, carbon dioxide, and water
5. ATP-Adenosine Triphosphate is the energy currency of the cells.
6. The breathing and respiration in woody stem of a plant takes place through lenticels
7. During Marathon race, we sometimes get painful contractions of leg muscles due to the accumulation of lactic acid
8. The process of respiration which releases energy takes place inside the cells of the body is known as cellular respiration
9. The mechanism by which organisms obtain oxygen from air and release carbon dioxide is called breathing.
10. Seat of respiration is mitochondria
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In tomato plants, purple leaf color is controlled by a dominant allele A, and green leaf by a recessive allele a. At another locus, hairy leaf H is dominant to hairless leaf h. The genes for leaf color and leaf texture are separated by 16 m.u. on chromosome 5. On chromosome 4, a gene controlling leaf shape has two alleles: a dominant allele C that produces cut-leaf shape and a recessive allele c that produces potato-shaped leaf.
a. The cross of a purple, hairy, cut plant heterozygous at each gene to a green, hairless, potato plant produces the following progeny:
Frequency % 21 21 21 Phenotype Purple, hairy, cut Purple, hairy, potato Green, hairless, cut Green, hairless, potato Purple, hairless, cut Purple, hairless, potato Green, hairy, cut Green, hairy, potato 21 4 4 4 4 100
Give the genotypes of parental and progeny plants in this experiment.
b. Fully explain the number and frequency of each phenotype class.
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The cross is between a heterozygous purple, hairy, cut leaved plant and a green, hairless, potato leaved plant. It is an example of a trihybrid cross.
The genotypes of the parents are AaHhCc and aahhcc.
The genotypes and phenotypes of the offspring are as follows:
1. AaHhCc - purpe, hairy, cut
2.AaHhcc - purple, hairy, potato
3. AahhCc - purple, hairless, cut
4. Aahhcc - purple, hairless, potato
5. aaHhCc - green, hairy, cut
6. aaHhcc - green, hairy, potato
7. aahhCc - green, hairless, cut
8. aahhcc - green, hairless, potato
Each phenotype will be 12.5%
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Name the four lapse rates and describe what each affects.
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Dry rate is the rate at which a rising air parcel will change temperature with change in altitude if the air parcel is not saturated. Dewpoint rate is the rate at which the dewpoint changes with change in altitude. Wet rate is the rate at which a rising air parcel will change temperature with change in altitude after the air parcel has become saturated. Environmental rate is the rate at which the surrounding air changes temperature with change in altitude
Which of the following is a correct statement about the relationship between natural selection and evolution?
(3 points)
A. Natural selection results from evolution.
B. Natural selection includes evolution as a part of it.
C. Natural selection is one mechanism of evolution.
D. Natural selection and evolution are the same thing.
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The statement 'natural selection is one mechanism of evolution' is CORRECT (Option C).
Evolution refers to the modification of inherited phenotypic traits in successive generations as a consequence of the adaptation to specific environmental conditions.
Natural selection is considered the main force driving evolution.
This mechanism (natural selection) increases the frequency of adaptive genes and/or alleles across generations by differential survival and reproduction of organisms better adapted to the environments in which they live.
In conclusion, the statement 'natural selection is one mechanism of evolution' is CORRECT (Option C).
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What happen after you drink mineral water, does it go to kidney and how it get removed
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“It is concluded that mineral water containing calcium and magnesium, such as that used in this study, deserves to be considered as a possible therapeutic or prophylactic agent in calcium oxalate kidney stone disease.”
Source: https://pubmed.ncbi.nlm.nih.gov/9096270/
Answer:
dont know hope it helpsjcjdjc
Describe the role of carbon in biological systems
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Carbon is an important element that is necessary for the development and growth of the living organisms. It makes up the structure of living organisms.
Carbon having four valence electrons in it's outermost shell is able to bind with oxygen, nitrogen, and hydrogen to form biomolecules like carbohydrates, lipids, proteins, and nucleic acids. These biomolecules are involved in various processes in the living organisms like defense, reproduction, growth, photosynthesis, respiration, and others. These biomolecules are necessary for the proper functioning, growth, metabolism, and development of living organisms. Conclusion: Hence, carbon acts as an integral element that is necessary for structure and function of the organisms.Learn more about carbon:
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What do mitochondria do in healthy cells, and ny had defective mitochondria caused
David to lose his vision?
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Muscle weakness, intolerance to exercise, decreased hearing and vision, ataxia, seizures, learning difficulties, heart problems, diabetes, and poor growth are the hallmark signs of mitochondrial myopathy.
What will happen if have a defective mitochondria?Defects in mitochondria, the body's energy producers that may be found inside practically all cells, are the root cause of mitochondrial disorders. mitochondrial myopathies are mitochondrial diseases that create noticeable muscular issues, while mitochondrial encephalomyopathies are mitochondrial disorders that cause noticeable muscular and neurological abnormalities.Several of the syndromes linked to mitochondrial disease include Barth syndrome, Chronic progressive external ophthalmoplegia, Kearns-Sayre syndrome, Leigh syndrome, Mitochondrial DNA depletion syndromes , Mitochondrial encephalomyopathy, Lactic acidosis, and stroke-like episodes, Mitochondrial neurogastrointestinal encephalomyopathy, Myoclonus epilepsy with ragged red fibers, Neuropathy, ataxia, and retinitis pigmentosa , Pearson syndrome.The mtDNA mutation that causes NARP also causes MILS, and the two disorders can coexist in the same family. NARP can cause developmental delay, seizures, and dementia in addition to the primary symptoms for which it is called.To learn more about mitochondria refer :
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 Which statement about the cells of organisms is accurate?
A. plants are unicellular organisms that have specialized functions.
B. All organisms are multicellular and carry out similar functions of life.
C. The single cell of a unicellular organism carries out all functions of life.
D. The single cell of a unicellular organism can have specialized functions.
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Answer:
B
Explanation:
Animals, plants, and fungi are multicellular organisms so therefore B
How do we all know about this, but Peter didn’t? What tools do we have today that Peter’s world, 200 years ago, didn’t have? (about 3 sentences)
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1. Bacteria. Two bacteria were placed in a dish. The number of bacteria quadruples every hour. There are now 131,072 bacteria in the dish. How many hours have passed since the original two bacteria we
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To determine the number of hours that have passed since the original two bacteria were placed in the dish, we can use the fact that the number of bacteria quadruples every hour.
Starting with two bacteria, we can observe the progression:
Hour 1: 2 bacteria
Hour 2: 2 x 4 = 8 bacteria
Hour 3: 8 x 4 = 32 bacteria
Hour 4: 32 x 4 = 128 bacteria
Hour 5: 128 x 4 = 512 bacteria
Hour 6: 512 x 4 = 2048 bacteria
Hour 7: 2048 x 4 = 8192 bacteria
Hour 8: 8192 x 4 = 32768 bacteria
Hour 9: 32768 x 4 = 131072 bacteria
Therefore, it took 9 hours for the number of bacteria to reach 131,072.
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Where are the sugars created during photosynthesis?
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Answer: Glucose is the basic sugar produced during photosynthesis in stroma part of chloropast.
Explanation:
It occurs in a series of steps, which together constitute Calvin cycle. Glucose, the basic sugar is thus produced in stroma part of chloroplast as explained above.
Which of the following statements best describes the relationship between genes and their outcomes? F. Every gene influences a single trait. G. Similar genes produce the same outcome in every individual. H. Every gene can be linked to one specific, predictable outcome. I. The outcome of a gene is affected by the environment of the cells and the timing of gene expression.
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Option I. The outcome of a gene is affected by the environment and timing of gene expression, not every gene influences a single trait.
The explanation that best portrays the connection among qualities and their results is I: the result of a quality is impacted by the climate of the cells and the planning of quality articulation. While qualities really do assume a part in deciding a singular's characteristics, it's anything but a basic balanced relationship. The declaration of qualities can be impacted by different elements, remembering the climate for which the phones are found, the planning of quality articulation during improvement, and communications with different qualities. Besides, a similar quality can have various results in various people, contingent upon hereditary and natural elements. In this manner, while qualities really do add to a singular's characteristics, their results are not very much unsurprising and can be impacted by various elements.
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how is an herbivore adapted to it's mode of feeding
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What are 3 lines of evidence that corroborate the theory of evolution?
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Answer:
Lines of Evidence supporting theory of evolution by natural selection: Fossil evidence, Biographical evidence and Anatomical evidence.
Explanation:
I majored in Biology
All eukaryotes are multicellular, contain organelles, and replicate via binary fission. True False
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The statement is FALSE
Eukaryotes are multicellular, contain organelles, and undergo MITOSIS for cellular division.
Prokaryotes are organisms that replicate through binary fission.
the volume of air that can be expelled from completely filled lungs is called
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The volume of air that can be expelled from completely filled lungs is called Vital Capacity. This refers to the maximum amount of air a person can expel from their lungs after taking the deepest possible breath.
The whole volume of air expelled (t) after a maximal inhalation. The value, which varies with age and body size, is approximately 4800mL. Tidal volume, inspiratory reserve volume, and expiratory reserve volume are added together to calculate it. TV+IRV+ERV equals VC.
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