Question

In an alien species, alleles X and T are co-dominantly expressed. Allele X codes for red fur and allele T codes for white fur. A third allele, W, codes for black fur and is recessive. If a black-furred alien mates with a pink-furred alien, What fur colors can their offspring have?

A) Red, white, and black
B) Pink and white
C) Pink, red, and black
D) Pink, red, and white

Answer 1

Offspring of a black-furred and a pink-furred alien in a species with co-dominance and a recessive allele can have pink, red, and white fur colors due to the combinations of the X, T, and W alleles.

Step-by-step explanation:

In an alien species with co-dominant alleles X (red fur) and T (white fur), and a recessive allele W (black fur), when a black-furred alien (which must be WW) mates with a pink-furred alien (XT), the possible fur colors of their offspring can include red, pink, and black. The offspring can have the genotypes XT (pink fur, from inheriting X from the pink parent and T from the black parent), WT (white fur, since W is recessive and T co-dominant), and WX (red fur, since W is recessive and X co-dominant). Therefore, the correct answer is D) Pink, red, and white.