Question #6423522Single Choice

Biology

Question

Which of the following genetic scenarios is an exception to the common two-factor genotype determination?

Options

A
    A pea plant's seed texture is determined by a single gene with two alleles showing complete dominance.
B
    A dog's coat length is controlled by a gene with two alleles, but the expression is affected by temperature.
C
    In a certain species of bird, feather color is determined by a gene with five alleles.
D
    A human's earlobe attachment is determined by a single gene with two alleles and shows a simple dominant-recessive pattern.

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