Question

Sickle cell anemia is known to run in a family. A pedigree chart for this family is shown below.

The parents are shown at the top and from left to right appear as a half-shaded circle labeled 1 next to a half-shaded square labeled 2. The two are connected by a straight line. Below the parent pair is a vertical straight line connecting to the next row of circles and squares which are the offspring. Starting from left an unshaded square labeled 1, half-shaded circle labeled 2, another half-shaded circle labeled 3, and a completely shaded square are shown labeled 4. All of these are also connected by a horizontal straight line.

What best describes offspring 4?

A female carrier of the disease
A female having the disease
A male carrier of the disease
A male having the disease

Answer 1

A male that have a disease

Step-by-step explanation:

Answer 2

A male having the disease

Step-by-step explanation:

A male is a square, and if it is shaded it means that the male has the disease.