This is what I need help with

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.

10 points a population of mice have tails. over time those mice with either really short tails or really long tails have a higher rate of survival. this will probably lead to what type of selection? a. disruptiveb. directionalc. stabilizingd. evological

Adehydrated patient has high water concentration in her urine and high adh concentration in her blood. which of the following is likely malfunctioning in the patient? a. pituitary gland b. urinary bladder c. kidney tubules d. circulatory system