In some goats, the presence of horns is produced by an autosomal gene that is dominant in males and recessive in females. A horned female is crossed with a hornless male. The F 1 offspring are intercrossed to produce the F2. What proportion of the F 2 females will have horns? A series of two-point crosses were carried out among 7 loci producing the following recombination frequencies. Map the 7 loci on their respective chromosome(s) and the distance between the loci of each group. 1In Drosophila (fruit flies), yellow body is due to an X inked gene that is recessive to the genes for gray body. A homozygous gray female is crossed with a yellow male. The F 1 are intercrossed to produce F 2 . Give the genotypes and phenotypes, along with the expected phenotypes of the F 1 and F 2 progeny..