Answer: Roles of DNA polymerases and other replication enzymes. ... which require a template and a primer (starter) and synthesize DNA in the 5' to 3' direction. ... Topoisomerase also plays an important maintenance role during DNA replication.
Explanation:
hard to explain
The overall charge of an atom is neutral because it has the same amount of protons and neutrons. They are positive and negative so they cancel each other out.
The digestion of protein begins at mouth and it continues at stomach and small intestine.
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Answer:
b. During replication there is both a leading strand and a lagging strand
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c. Each replication bubble has two replication forks.
Explanation:
Eukaryotic chromosomes have multiple origins of replication to replicate the long chromosomes at a higher rate.
The two DNA strands have opposite polarity, that is, 5' end of the one DNA strand is present opposite to the 3' end of the other DNA strand. DNA replication occurs only in 5' to 3' direction and the direction of the movement of the replication fork is also 5' to 3' direction.
To allow the DNA replication in 5' to 3' direction on both strands, one strand is replicated discontinuously in the direction opposite to the movement of the replication fork.
The discontinuously replicated strand is lagging strand while the other one is the leading strand.
DNA replication in eukaryotes occurs bidirectionally as two replication forks are formed at each replication bubble, one at each end of the replication bubble.
The presence of multiple origins of replication and the bidirectional process allows the replication of large eukaryotic DNA at a considerable fast speed.
Convergent evolution is when 2 species not necessarily alike evolve similarly because of the same environment characteristics.
Adaptive radiation is when a species moves from mainland to another place and evolves there.
Answer. B ) Convergent evolution produces organisms with similar adaptations but different ancestry, whereas adaptive radiation produces organisms with different adaptations but common ancestry.
