Problem
Fancy bears have long tails, that follow a maternal effect pattern with down-curling tails dominant over up-curling tails. You cross a male name Fred who is homozygous for the down-curling allele, and with a down-curling phenotype with a female named Cathy who is homozygous for the up-curling alleles, and has an up-curling phenotype. You then cross the F1 progeny to produce an F2 generation and you get 1600 offspring. What phenotypes and their proportions do you predict among the F1 progeny?