In plants, genes E, F, and G are on one chromosome arm. Alternate dominant and recessive alleles of all three genes determine visible traits: E = normal leaf number, e = extra leaves, F = normal stems, f = furry stems, G = normal flower size, g = gigantic flowers. A plant that is heterozygous for an inversion involving all three genes is crossed to a plant with extra leaves, furry stems, and gigantic flowers. The arrangement of alleles is shown in the diagram. If you look at thousands of offspring of this cross, what phenotypes do you expect to see?(Select all that apply.)

Question

A) Most, but not all, offspring will be normal for all three traits or have extra leaves, furry stems, and gigantic flowers.

B) Due to double crossovers between E and F and F and G, a very small number of offspring will have only furry stems, or only extra leaves and gigantic flowers.

C) Half of the offspring will be normal for all three traits and half will have extra leaves, furry stems, and gigantic flowers.

D) Due to crossovers between E and F in parent 1, a small number of offspring will have only extra leaves, or only furry stems and gigantic flower size.

E) Due to crossovers between F and G, a small number of offspring will have only extra leaves and furry stems, or only gigantic flower size.

Answer 1

A) Most, but not all, offspring will be normal for all three traits or have extra leaves, furry stems, and gigantic flowers.

B) Due to double crossovers between E and F and F and G, a very small number of offspring will have only furry stems, or only extra leaves and gigantic flowers.