The Hormone That Causes Ejection of Milk into the Mammary

question 51

Multiple Choice

The hormone that causes ejection of milk into the mammary ducts is:

• A) prolactin.
• B) estrogen.
• C) oxytocin.
• D) progesterone.

---

Definitions:

Fragile X Syndrome

A genetic condition causing intellectual disability, behavioral and learning challenges, and various physical characteristics.

Noninvasive Prenatal Testing

A screening method that analyzes fetal DNA in the mother's blood to assess the risk of certain genetic disorders.

Canalized Traits

Characteristics or attributes of an organism that are genetically controlled to follow a narrow range of development, regardless of environmental conditions.

Incomplete Dominance

A genetic phenomenon in which a dominant allele does not completely mask the effects of a recessive allele, resulting in a third, often blended phenotype.