In an Amazonia beetle purple color is caused by an Xlinked a

In an Amazonia beetle, purple color is caused by an X-linked allele; the other allele at this locus causes green color. The female heterozygote has green and purple spots due to X-inactivation. What kinds of offspring would you expect form the cross of a spotted female and a green male

a.

purple or green females; purple or green males

b.

spotted or purple females; spotted or purple males

c.

spotted or green females; purple or green males

d.

only green females; only purple males

e.

spotted or purple females; purple or green males

Solution

(purple spotted female) Pp X (Green male) Gg

The offspring obtained from above cross are spotted or purple females and purple or green males. The option e is correct.

male/ female PG Pg pG pg
PG PPGG PPGg PpGG PpGg
Pg PPGg PPgg PpGg Ppgg
pG PpGG PpGg ppGG ppGg
pg PpGg Ppgg ppGg ppgg
In an Amazonia beetle, purple color is caused by an X-linked allele; the other allele at this locus causes green color. The female heterozygote has green and pu

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