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QuizMultiple Choice

Introduction to Heredity

Question 2 • FL-2002070-M/J Comprehensive Science 2

A plant is homozygous for flower color. Its flowers are pink.Which conclusion is best supported by the information?

Answer
A
Flower color is a recessive trait.
B
Flower color is a dominant trait.
C
Both parents had an allele for pink flower color.
D
Only one parent had an allele for pink flower color.

Explanation

A homozygous plant has two copies of the same allele for flower color. Since its flowers are pink, it has two alleles associated with pink flowers, one inherited from each parent. Therefore, both parents had an allele for pink flower color; the information does not establish whether pink is dominant or recessive.

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