To determine the order of body colour, wing size and eye colour genes on the chromosome of Drosophila, which of the following sets of crosses will you perform?

a. Cross 1 - ♂ wild-type heterozygous for normal wings and red eyes x ♀ recessive homozygous for vestigial wings and purple eyes. Cross 2 - ♂ wild-type heterozygous for gray body and red eyes x ♀ recessive homozygous for black body and purple eyes.

b. Cross 1 - ♂ wild-type homozygous for normal wings and red eyes x ♀ recessive homozygous for vestigial wings and purple eyes. Cross 2 - ♂ wild-type homozygous for gray body and red eyes x ♀ recessive homozygous for black body and purple eyes.

c. Cross 1 - ♂ wild-type heterozygous for normal wings and red eyes x ♀ recessive homozygous for vestigial wings and purple eyes. Cross 2 - ♂ wild-type homozygous for gray body and red eyes x ♀ recessive homozygous for black body and purple eyes.

d. Cross 1 - ♂ recessive homozygous for vestigial wings and purple eyes x ♀ recessive homozygous for vestigial wings and purple eyes. Cross 2 - ♂ recessive homozygous for black body and purple eyes x ♀ recessive homozygous for black body and purple eyes.

My Courses

Chemistry

Biology

Math

Physics

Business

Social Sciences

Programming

Product & Marketing

Assume that we are trying to map four genes in a chromosome. Given the following recombination frequencies, what will be the sequence of the genes in the chromosome? Recombination frequencies: A-B = 25% B-C = 15% A-D = 15% B-D = 40%

Assume that we are trying to map four genes in a chromosome. Given the following recombination frequencies, what will be the sequence of the genes in the chromosome?
Recombination frequencies:
A-B = 25%
B-C = 15%
A-D = 15%
B-D = 40%