The correct answer is A because G and C work together, and T and A work together, except A turns into U when transferring to mRNA.
The correct answer is option D, that is since genetic drift is random, it does not always favor the better or healthier organisms.
A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.
B. Reproductive organs are formed by the body