Why is water necessary for living things?

What is the name of the two satelites on mars

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

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.