The back color pattern in frogs can be either leopard or mottled. Leopard frogs

Question

The back color pattern in frogs can be either leopard or mottled. Leopard frogs have pure white areas between colored patches, while mottled frogs have less even coloring. The mottled pattern is known to be dominant to leopard. We'll use "L" for the allele causing mottled, and "l" for the allele causing leopard.

When you cross a leopard frog from a true-breeding strain to a mottled frog from a true breeding strain, the resulting F1 generation are all mottled. What gametes will these F1 frogs produce?

1/2 L gametes and 1/2 l gametes

all L gametes

1/4 L gametes, 1/2 Ll gametes, and 1/4 l gametes

we can't determine this unless we know the phenotype of the frog being crossed to the F1 frog

3/4 l gametes and 1/4 L gametes

3/4 L gametes and 1/4 l gametes

all Ll gametes

1/2 L gametes and 1/2 l gametes

all L gametes

Explanation / Answer

1.- 1/2 L gametes and 1/2 l gametes

reason- because the genotype we get after crossing both the true-breeding strain is Ll so these F1 generation will produce 1/2 L gametes and 1/2 l gametes. because when the gametes are formed,the genes seperate and are distributed as units to each gametes.

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