During rapid eye movement (REM) sleep, tend to inhibit activity. a. neurotransmitters b. motor nerves c. polybrominated diphenyl ethers d. perfluorinated compounds

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.