One fish of this type has alleles 1 and 3 (S1S3) and its mate has ...

[Hungry!]

One fish of this type has alleles 1 and 3 (S1S3) and its mate has alleles 2 and 4 (S2S4). If each allele confers a unit of color darkness such that S1 has one unit, S2 has two units, and so on, then what proportion of their offspring would be expected to have five units of color?
A) 1/4
B) 1/5
C) 1/8
D) 1/2
E) 0

[TI]

Hi there,

The answer should be D.

Good luck!

[Hungry!]

Thanks so much, you were right on.

[mochi09]

Thank you!