If glossopteris fossils were found in antarctica, what was the climate of this continent before

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?