Answer for brainlist

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?

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

Were you able to observe the nucleolus in any of the cells if so which ones