Which of the following is a characteristic of a recessive trait?
Practice Questions
1 question
Q1
Which of the following is a characteristic of a recessive trait?
Expressed in homozygous individuals only
Expressed in heterozygous individuals
Always expressed
Dominates over other traits
A recessive trait is expressed only in homozygous individuals, meaning both alleles must be recessive.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following is a characteristic of a recessive trait?
Solution: A recessive trait is expressed only in homozygous individuals, meaning both alleles must be recessive.
Steps: 5
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).