Question

A geneticist studying fruit flies hypothesizes that short wings are a recessive trait coded for by a single gene. Which observation is most likely to have led her to form this hypothesis?.

Answer 1

Recessive traits are the traits that are not expressed in heterozygous conditions. Here, the hypothesis is the fact that flies with long wings can produce offspring with short wings.

What is trait?

Trait is the characteristic of an organism determined by genes, environmental factors, etc.

As the hypothesis that short wings are a recessive trait coded for by a single gene, the observation that is led to the fact that flies with long wings can produce offspring with short wings.

Thus, this can be the observation that was led by the hypothesis that  short wings are a recessive trait coded for by a single gene.

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