Healthy blood vessels do what more easily?

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

What is the problem in this article? what solution does the article propose?

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.