A Heterozygous Fruit Fly with Normal Wings and a Gray

question 85

Multiple Choice

A heterozygous fruit fly with normal wings and a gray body ( VvBb ) is crossed with homozygous flies with vestigial wings and black bodies ( vvbb ) . Out of 800 total F₁ progeny, 296 are normal gray, 328 are vestigial black, 99 are normal black, and 77 are vestigial gray. What is the best explanation for this result?

• A) The loci for wing length and body color are on different chromosomes.
• B) The loci for wing length and body color are on sex chromosomes.
• C) The loci for wing length and body color are on the same chromosome.
• D) Mendel's principle of independent assortment accounts for this.
• E) Mendel's principle of segregation accounts for this.

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