Solid color allele is dominant to striped, and long hair allele is dominant to short hair in a laboratory animal.If the mating of a long, solid animal with a short, striped animal produces the maximum number of phenotypes, how many will be produced?
A)1
B)2
C)4
D)8

Question

Quizplus · Accepted Answer

The genotypes of the parents are:
Long and solid = LLSS (dominant for both traits)
Short and striped = llss (recessive for both traits)

The Punnett square for this cross is:

|   | L  | L  |
|---|---|---|
| l | Ll | Ll |
| l | Ll | Ll |

|   | S  | S  |
|---|---|---|
| s | Ss | Ss |
| s | Ss | Ss |

The resulting phenotypes are:
- Long and solid (LLSS, LLSs, LLss): 3 offspring
- Long and striped (LLss): 1 offspring
- Short and solid (LlSS, LlSs): 2 offspring
- Short and striped (llSS, llSs, llss): 3 offspring

Therefore, the maximum number of phenotypes produced is 4.

Solid Color Allele Is Dominant to Striped, and Long Hair