Answer: The answer is helicase. This enzyme allows of the unzipping of the double helix DNA to form the replicating fork. They use ATP hydrolysis to break the hydrogen bonds between nucleotide bases. This comes before binding, on the DNA, by replication enzymes such as DNA Polymerase III.
Explanation:
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"Adjacent chromatids in homologous chromosomes cross over during meiosis in sperm and egg formation" is the one among the following choices that describes what <span>causes genetic variation during human sexual reproductive processes. The correct option among all the options given in the question is the second option.</span>
Answer:
Explanation:
In endoplasmic reticulum, many folds leads to an increase in surface area for ribosomes to attach which allows for protein synthesis to occur at an efficient rate.
mitochondria has two membrane,
It has an inner membrane which is folded inside the other. The fold create cristae, which is the site for a portion of cellular respiration.
The folds also enables a large surface area that makes chemical process to occur in an efficient way.
