Why are current extinctions of concern to enviromentalists?

Nucleic acid certain protein cell membranes certain carbohydrates

The transport tubes for food coming down the plants are called?

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.