How does a new mammoth egg cell get chromosomes from each of the parents?

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

What are the responsibilities of the region of the brain highlighted below? =+= will rate brainiest =+=