In Humans, the Allele for Red-Green Color Blindness Is X-Linked

question 44

Multiple Choice

In humans, the allele for red-green color blindness is X-linked and recessive (Xʳ; the dominant allele is called Xᴿ) . A man with normal color vision marries a color-blind woman who gives birth to a color-blind daughter. What can be inferred from this information?

• A) The woman is XᴿXʳ.
• B) The man must be a carrier for the color blindness allele.
• C) The daughter must be heterozygous.
• D) The man is probably NOT the father of the daughter.

---

Definitions:

Absolute Value

The non-negative value of a number without regard to its sign; essentially, it's the distance of a number from zero on the real number line.

Correlation

Correlation is a statistical measure that expresses the extent to which two variables fluctuate together, showing the strength and direction of their relationship.

Scatter Plot

A type of graph or plot which uses Cartesian coordinates to display values for typically two variables for a set of data.

45° Angle

A 45° angle is a measure of angle equal to half of a right angle, commonly encountered in geometry and trigonometry.