The Expression of Both Alleles for a Trait in a Heterozygous

question 35

Multiple Choice

The expression of both alleles for a trait in a heterozygous individual illustrates

• A)polygenic inheritance.
• B)incomplete dominance.
• C)codominance.
• D)pleiotropy.

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Definitions:

Environmental Causes

Factors in an individual's surroundings that can influence their development, behavior, and health.

Socioeconomic Classes

Categories of people living together in a society who have a similar level of wealth, education, and occupational prestige.

Down Syndrome

A genetic disorder caused by the presence of an extra chromosome 21, characterized by physical growth delays, characteristic facial features, and varying degrees of intellectual disability.

Extra Chromosome

An additional chromosome in the genetic makeup of an individual, which can lead to developmental abnormalities or genetic disorders, such as Down syndrome.