You are trying to improve growth in an economically important fish species.These fish have a gene that controls their size.There are two size alleles;L and S.You cross a large female (LL)with a small male (SS)and get all large fish! The genotypes of the F₁ are 100% LS so you assume that large size is dominant to small.You then cross a small female (SS)with a large male (LL)and get all small fish! The genotypes of this F₁ are all LS.How do you explain this result? A)The gene for large size is a maternal effect gene. B)L is not dominant to S. C)The gene for large size is a sex-linked gene. D)L is dominant to S. E)The gene for large size is a maternal effect gene and L is dominant to S.

Question

Quizplus · Accepted Answer

The gene for large size is a maternal effect gene, meaning the phenotype of the offspring is determined by the genotype of the mother, not the offspring's own genotype.

You Are Trying to Improve Growth in an Economically Important