Answer:
DNA replication is initiated by the help of these enzymes.
Explanation:
Helicase enzyme helps is unwinding the two complementary strand of DNA by hydrolysing the hydrogen bonds present between the nitrogenous bases of the two opposite strands.
Topoisomerase enzyme help in expansion of the Replication bubble by releasing the super coiling or tension occured while unwinding by helicase. It breaks the phosphate bonds in one of the two strands ahead of replication bubble or fork to release super coiling or overwinding.
Single-strand binding proteins gets bind to the separated strands to stabilize the structure of Replication bubble or to keep the both strand separated from each other.
First eliminate choices C and D since they both mention that fact 1 is crossing over ( which is also referred to as genetic recombination) . So you're left with A and B and the correct answer is B .
Needs to be transported to the mitochondria or the cytosol.
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</span>There are four stages of cellular respiration: glycolysis, pyruvate oxidation, Krebs cycle and Oxidative
phosphorylation. Glycolysis takes place in the cytosol of a cell,while the <span>pyruvate oxidation and the following steps take place </span> in the matrix of the mitochondria. If the enzyme is involved in cellular respiration, it need to be in one of these places.
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Carrier proteins are the proteins in active transport
Answer:
How are the nucleus and a vesicle similar and different in structure and function? Both are membrane-bound compartments that store and separate certain materials. The nucleus is an almost permanent structure protected by a double membrane bilayer, whereas a vesicle is a temporary organelle.
