Question

Suppose two snakes known to be heterozygous for both orange and black coloration genes are mated. What fraction of the offspring would be expected to have albino coloration?

1) 1/4
2) 1/2
3) 3/4
4) 1/8

Answer 1

The fraction of offspring expected to have albino coloration when two heterozygous snakes for orange and black coloration genes are mated is 1/4 or 25%.

Step-by-step explanation:

In a mating between two snakes known to be heterozygous for both orange and black coloration genes, the expected fraction of offspring with albino coloration would be 1/4 or 25% (option 1). This is because albino coloration is a recessive trait, and both parents are heterozygous, meaning they have one dominant and one recessive allele for this trait. When they mate, there is a 1/4 chance that both recessive alleles will be inherited by the offspring, resulting in albino coloration.