Question

a carrier is an individual who is heterozygous for the trait, because they carry the affected allele but do not express it.
false
true

Explanation:

In genetics, a carrier (for a recessive disorder, typically) is an individual with a heterozygous genotype. They have one affected (recessive) allele and one normal (dominant) allele. Since the dominant allele is expressed, the carrier does not show the disorder (does not express the affected trait) but can pass the affected allele to offspring. So the statement matches this genetic concept.

Answer:

True