In corn snakes, alleles at two loci control color pattern. Normal individuals (a

Question

In corn snakes, alleles at two loci control color pattern. Normal individuals (and this is the type seen usually seen in the wild) are patterned with conspicuous black outline around red brick red blotches. Individuals which are homozygous recessive cinder condition are black and white patterned, with no red. Amelanistic individuals are homozygous recessive for a condition that inhibits black color-they have the red, but no black outlines.

a) An amelanistic snake from a true-breeding line is crossed to a cinder snake from a true breeding line. The F1 offspring are all raised to adulthood. What color are they?

b) Now, imagine that an F1 male is crossed to an F2 female. 16 eggs hatch. Predict the colors of the offspring.

Explanation / Answer

a) When amelanistic snake from a true breeding line is crossed with a cinder snake from a true breeding line, the color of F1 individuals will be amelanistic.

b) When F1 male is crossed to an F2 female, 16 eggs hatch.

The colour of the offsprings are amelanistic(12) and snow (4).

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