Which option below best illustrates a heritable quantitative trait?

a.) Variation in a trait that is determined only by environment.

b.) Discrete phenotypic classes.

c.) Crossing extreme phenotypes produces a phenotypic ratio of 9:3:3:1 in the offspring.

d.) Phenotype only affected by a single gene with a dominant and recessive allele.

e.) Continuous variation in a phenotype, with offspring that resemble their parents.

Expert Solution

Correct answer is E.) Continuous variation in a phenotype, with offspring that resemble their parents.

Reason: Quantitative traits are affected by number of genes. The phenotypes are varied continuously and have range and not discrete ones. For example the height in case of humans.

gladiator answered 3 years ago

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