Question

In zebrafish, the gene for stripe color is linked to the gene for muscle type. Round muscles (D) are dominant to flat muscles (d). Blue stripes (B) are dominant to no stripes (b). You cross a phenotypically wildtype female (round muscle and blue stripes) who is heterozygous, to a male zebrafish that has flat muscles and no stripes, and get the following 1000 offspring: 400 round muscled, blue striped fish 420 flat muscled, no striped fish 85 round muscled, no striped fish 95 flat muscled, blue striped fish What is the haplotype of the round muscled and blue striped mother? O a. DB/db O c. db/db O d. DB/DEB

Answer 1

Option A

note- the mother is herterozygous for both the gene carrying one dominant and one recessive allele which allow the offsprings to be variant recombinanat s well as parental type.