Enzyme responsible for replacing RNA primers with DNA is a type of: DNA ligase. The enzyme responsible for proofreading a growing DNA strand and for replacing mismatched nucleotides is:helicase.
Answer:
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Explanation:
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As powerful as diffusion is, cells sometimes must move materials in the opposite direction—against a concentration difference. This is accomplished by a process known as active transport. As its name implies, active transport requires energy.
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Answer:
Sulfur, phosphorous.... sedimentary cycle.
Carbon, oxygen and nitrogen.... gaseous cycle
The answer is (B) Edward's Syndrome, Down Syndrome, Klinefelter's Syndrome.
These syndromes are caused when there is an extra copy of chromosomes present in the cells.
In Edward's syndrome, there is an extra copy of the chromosome 18.
In Down's syndrome, there is an extra copy of chromosome 21.
In Klinefelter's syndrome, there is an extra copy of X chromosome.
