The Form of External Genitalia Is Determined by the Presence

question 101

Multiple Choice

The form of external genitalia is determined by the presence or absence of:

• A) testosterone.
• B) estrogen.
• C) a Y chromosome.
• D) teratogens.

---

Definitions:

Gene Flow

The transfer of genetic variation from one population to another, which can lead to changes in the genetic composition of both populations.

Allele Frequencies

The relative proportions of different alleles of a particular gene in a given population.

Dominant Allele

An allele that expresses its phenotypic effect even when heterozygous with a recessive allele.

Genotype

The genetic makeup of an organism, representing the combination of alleles inherited from its parents.