YOUR GOAL: You are studying how a particular gene, named Insom, might play a role in insomnia. You want to study mice with this gene turned off. To knockout the Insom gene you will A) replace it with a mutated, inactive copy of Insom. B) destroy the mouse DNA with chemotherapy. C) radiate the DNA, hoping for mutations. D) kill the mouse and examine its DNA.

I believe its answer A

Explanation:

because so many mouse genes are similar to human genes, geneticists can generate knockout mice in which the mouse counterpart of a human gene of interest is deleted or disrupted.  geneticists use the term to refer to a mouse that has been genetically engineered such that at least one of its genes is functionally inactivated (i.e. the inactivated gene is "knocked out")

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure