In drosophila melanogaster, vestigial wings are caused by a recessive allele of a gene that is linked to a gene with a recessive allele that causes black body color. morgan crossed black-bodied, normal-winged females and gray-bodied, vestigial-winged males. the f1 were all gray bodied, normal winged. the f1 females were crossed to homozygous recessive males to produce testcross progeny. morgan calculated the map distance to be 17 map units. which of the following is correct about the testcross progeny?
a) black-bodied, normal-winged flies = 17% of the total.
b) black-bodied, normal-winged flies plus gray-bodied, vestigial-winged flies = 17% of the total.
c) gray-bodied, normal-winged flies plus black-bodied, vestigial-winged flies = 17% of the total.
d) black-bodied, vestigial-winged flies = 17% of the total.

Which of the following is an example of this type of co-evolution

Interpret the model. a three-part model with black right-arrows between the parts. left part: a large green apple-shaped component with a w-shaped indentation centered on top. a small blue apple-slice shape sits above the left indentation and an arrow points from the shape to the indentation. a small purple apple-slice shape and arrow sit above the right indentation and an arrow points from the shape to the indentation. middle part: a large green apple-shaped component with a square indentation centered on top. sitting in the left side of the indentation is a blue apple-slice shape with a flat bottom, fused to a purple apple-slice shape with a flat bottom on the right side of the indentation. right part: a large green apple-shaped component with a w-shaped indentation centered on top. an up-arrow is centered above the indentation pointing to a fused blue and purple apple-slice-shaped flat-bottom component sitting above the indentation. assigne "true" or "false" to the end of each statement. the model shows a shape change occurring in the enzyme after the substrate is bound in the active site. t/fthere are two products in this model. t? f there are three substrates in this model. t/f the model shows two different enzymes. t/f

Which feature would you expect to find in a population in which sexual selection depends on male competition?