A Partial Diploid of Genotype I⁺P⁺ O⁺ Z⁺ Y^-

Question

A partial diploid of genotype I⁺P⁺ O⁺ Z⁺ Y^- / I⁺ P^-O⁺ Z⁺ Y⁺will show: A)inducible production of $\beta$-galactosidase. B)inducible production of $\beta$-galactosidase and permease. C)constitutive production of $\beta$-galactosidase. D)constitutive production of $\beta$-galactosidase and permease. E)no $\beta$-galactosidase or acetylase production at all.

Accepted Answer

The partial diploid is I⁺ P⁺ O⁺ Z⁺ Y^- / I⁺ P^-O⁺ Z⁺ Y⁺. The I⁺ gene is dominant to the I^- gene, the P⁺ gene is dominant to the P^- gene, the O⁺ gene is dominant to the O^- gene, the Z⁺ gene is dominant to the Z^- gene, and the Y⁺ gene is dominant to the Y^- gene. Therefore, the partial diploid will have the following genotype: I⁺ P⁺ O⁺ Z⁺ Y⁺. This genotype will produce F1F1F1S1F1F1F10-galactosidase constitutively.

A partial diploid of genotype I+ P+ O+ Z+ Y- / I+ P- O+ Z+ Y+ will show:

A partial diploid of genotype I⁺P⁺ O⁺ Z⁺ Y^- / I⁺ P^-O⁺ Z⁺ Y⁺will show: