Bicoid (bcd) is a maternal-effect gene in Drosophilarequired for normal embryo development. What would be the phenotypes of offspring from a homozygous mutant mother (bcd-/bcd-) and a heterozygous father with one normal allele and one mutant allele (bcd+/bcd-)? a. All offspring would be mutant. b. All offspring would be normal. c. of the offspring would be mutant and would be normal. d. of the offspring would be mutant and would be normal..