Answer:
C .they take up the usable forms of nitrogen found in the soil .
Explanation:
Answer:
False
Explanation:
Primers are the small segments of DNA or RNA. Primers do not cleave DNA at specific regions. It is a function of restriction endonucleases. Primers are required during the process of DNA replication as DNA polymerase cannot start the formation of a new DNA strand without preexisting free 3' OH ends. A primer is formed by a primase enzyme. Primers provide the free 3' OH ends to DNA polymerase which in turn extends them to make the new DNA strands. In PCR, primers serve as the same function for the enzyme of DNA strand formation (Taq polymerase).
Vitamin A is regarded as the antioxidant that plays an important role in cell
differentiation.
Cell differentiation is the process by which cells become specialized by
changing from one form to another to achieve a common structure and
function.
Vitamin A has a strong metabolite known as retinoic acid which is involved
in this process which supports it and also helps to eliminate the free radicals
which may be present.
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In metaphase I, the homologous pairs of chromosomes align on either side of the equatorial plate. Then, in anaphase I, the spindle fibers contract and pull the homologous pairs, each with two chromatids, away from each other and toward each pole of the cell. During telophase I, the chromosomes are enclosed in nuclei.
