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Puppy Genes

Science brain teasers require understanding of the physical or biological world and the laws that govern it.


Puzzle ID:#41820
Fun:*** (2.14)
Difficulty:** (1.47)
Submitted By:beepbeeptnmAus****




Jessica has two hamsters, one male and one female. The male hamster is brown, the dominant trait for hamsters. His genotype is Ff. The capital F represents the dominant trait for hamsters, which is brown fur. The lowercase f represents the recessive trait for hamsters which is white fur. The female hamster has white fur, the recessive trait for hamsters.

With these parents, there is a 50% chance of offspring whose phenotype (an organism's physical appearance) is heterozygous brown, and a 50% chance of an offspring whose phenotype is homozygous white.

What is the possibility of ever, with any two genotypes, having offspring whose phenotype is heterozygous white?

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