What structure/material acts as "instructions" for the cell? a. the cell membrane
b. ATP
c. chloroplasts
d. DNA

What field of science did harry hess study?

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

Amap's orientation is typically determined by an