Assume that investigators crossed a strain of flies carrying the dominant eye mutation Lobe on the second chromosome with a strain homozygous for the second
chromosome recessive mutations smooth abdomen and straw body. The F1 Lobe females were then backcrossed with homozygous smooth abdomen, straw -body males, and the following phenotypes were observed:
a() Give the gene order and map units for these three loci.
b() What is the coefficient of coincidence?

Question

Assume that investigators crossed a strain of flies carrying the dominant eye mutation Lobe on the second chromosome with a strain homozygous for the second
chromosome recessive mutations smooth abdomen and straw body. The F1 Lobe females were then backcrossed with homozygous smooth abdomen, straw -body males, and the following phenotypes were observed:
  a() Give the gene order and map units for these three loci.
b() What is the coefficient of coincidence?

Quizplus · Accepted Answer

The Answer of Assume that investigators crossed a strain of flies carrying the dominant eye mutation Lobe on the second chromosome with a strain homozygous for the second
chromosome recessive mutations smooth abdomen and straw body. The F1 Lobe females were then backcrossed with homozygous smooth abdomen, straw -body males, and the following phenotypes were observed:
  a() Give the gene order and map units for these three loci.
b() What is the coefficient of coincidence?

Assume That Investigators Crossed a Strain of Flies Carrying the Dominant