Gconsider a cross between female flies homozygous for brown bodies and red eyes and male flies homozygous for ebony bodies and sepia eyes. give the genotypes and the possible gametes of each set of parents.

Female gametes AB, male gametes ab

Offspring-heterozygous genotype AaBb

Explanation:

If we name the gene  for the body color with A and gene for the eye color with B  and if the brown body is dominan over ebony body, while red eyes are dominant over sepia eyes, than the genotypes  of the parents would be: female- AABB, male-aabb

P: AABB  x  aabb

Female gametes AB, male gametes ab

F1: AaBb all of the offspring would be heterozygous.

answer; both surfaces of the membrane are nonpermeable