Answer:
A
Explanation:
Genetic variation means difference in organisms. If they are identical, they are not different, and therefore there is no variation.
Answer:
RNA - single stranded, contains uracil, and protein synthesis.
DNA - Double stranded, contains thymine, and stored genetic material.
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Schwann and Schleiden made an error about the central feature of the cells because they both agreed that cells could originate from noncellular matter. Some biologists believed that spontaneous generation could occur in the presence of air. that is life could rise from nonliving matter in the presence of air. However French scientist Louis Pastuer performed an experiment to prove that spontaneous generation of life does not occur today. Reasons why it has been concluded that cells cannot rise from noncellular matter include up to today, no known example of increase in mass of cells without cell division and cells are highly complex and no any mechanism has been suggested to be able to create simpler subunits.
To permanently altering the viral DNA hidden in human cells. ... “These treatments cause the viruses to go latent, or silent, but they don't remove the virus from your body.
hi, the answer is b, line segment GH
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