Genetic testing .
A. is illegal in most states
B. is required in most states
C. can diagnose many genetic disorders
D. can be used by insurance companies to deny coverage

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

a bird that nests only in a particular tree species.

answer; coat color for blending in with dry grass;

answer; ///animal spirits;