In Birds, Males Have Two Z Chromosomes, and Females Have

question 50

Multiple Choice

In birds, males have two Z chromosomes, and females have a Z chromosome and a W chromosome.Suppose a gene that affected egg production was Z linked.Which value would be the best predictor of a female's egg production?

• A) Her mother's egg production
• B) Her maternal grandmother's egg production
• C) Her maternal aunt's egg production
• D) Her paternal grandmother's egg production
• E) There is no way to predict a female's egg production.

---

Definitions:

Cystic Fibrosis

A genetic disease affecting the lungs and digestive system, characterized by thick, sticky mucus leading to infections and digestion problems.

Mucus Thickens

A condition where the mucus becomes more viscous, often leading to congestion and difficulty in breathing or clearing passages.

Meconium Ileus

A blockage of the small intestines caused by thick, sticky meconium in newborn babies, often associated with cystic fibrosis.

Cystic Fibrosis

A genetic disorder that affects the lungs, pancreas, and other organs, leading to thick sticky mucus production, which causes respiratory and digestive problems.