Question

question 5
0.5 pts
an individual who is homozygous ______________.
carries two copies of the same allele for a gene
expresses the dominant trait
carries two different alleles for a gene
expresses the recessive trait

Explanation:

• For "carries two copies of the same allele for a gene": By definition, a homozygous individual has two identical alleles for a particular gene.
• For "expresses the dominant trait": A homozygous individual could be homozygous recessive (e.g., \(aa\)) and express the recessive trait, not necessarily the dominant one.
• For "carries two different alleles for a gene": This is the definition of a heterozygous individual (\(Aa\)), not homozygous.
• For "expresses the recessive trait": A homozygous individual could be homozygous dominant (\(AA\)) and express the dominant trait.

Answer:

An individual who is homozygous carries two copies of the same allele for a gene.