Answer:
B) Polymerases can only synthesize in the 5' to 3' direction
Explanation:
The leading strand's directionality is 3' to 5', so polymerase has no problem with replicating this one. But the lagging strand has the opposite directionality, so the polymerase must work in the opposite direction of the replication fork.In consequence, the replication process undergoes periodic breaks, and the enzymes have to stop and start again while helicase separates both strands, resulting in the polymerization of okazaki fragments.
I think it’s the first statement
I hope this helps :)
Answer:
Option A, The trees had become coated with soot and the dark moths were better camouflaged.
Explanation:
During the industrial revolution, bark of the trees became dark in color due to which the light colored moth were easily identifiable.
In response to this environmental change, the moth also evolved and became dark in color.
However, the total moth population of moth then constituted of both light and dark colored moths but the birds could eat only the light colored moth because they could not camouflaged themselves against the color of trees’ bark.
Hence, option A is correct
They both produce an offspring from at least one other organism.
