Which of the following is a characteristic of a recessive trait?

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Question: Which of the following is a characteristic of a recessive trait?

Options:

Correct Answer: Expressed in homozygous individuals only

Solution:

A recessive trait is expressed only in homozygous individuals, meaning both alleles must be recessive.

Which of the following is a characteristic of a recessive trait?

Which of the following is a characteristic of a recessive trait?

Correct Answer: A recessive trait is expressed only in homozygous individuals.

Step 1: Understand what a trait is. A trait is a characteristic or feature of an organism, like eye color or height.
Step 2: Learn about alleles. Alleles are different forms of a gene that determine a trait. For example, there can be a dominant allele for brown eyes and a recessive allele for blue eyes.
Step 3: Know the difference between dominant and recessive traits. A dominant trait is expressed even if only one allele is present, while a recessive trait is only expressed when both alleles are recessive.
Step 4: Understand homozygous individuals. Homozygous means having two identical alleles for a trait, such as two recessive alleles.
Step 5: Conclude that a recessive trait is only visible when an individual has two recessive alleles (homozygous).

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