Which of the following holds true for energy coupling?
energy is released in an exergonic reaction.
energy is transferred from an exergonic process to an endergonic one.
energy is consumed in an endergonic reaction.

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?