Inheritance Patterns

Practice Questions

SAT Subject Test in Biology › Inheritance Patterns

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1

According to the law of independent assortment, what is the possible number of combinations that chromosomes can assort to independently in the gamete?

2

According to the law of independent assortment, what is the possible number of combinations that chromosomes can assort to independently in the gamete?

3

What is the phenotypic ratio for a cross between a plant with blue flowers BB and a plant with white flowers bb?

4

Each person can have one of four possible blood types: A, B, AB, or O. Blood type A means that the "A" antigen is present on the red blood cell surface. Blood type B means that the "B" antigen is present on red blood cells' surfaces. Blood type "AB" means that both the "A" antigen and the "B" antigen are present on the red blood cells' surfaces. Blood type "O" means that no antigens are present on the red blood cells' surfaces.

A mother with blood type A and the genotype "A/O" and a father with blood type B and genotype "B/B" have a child with blood type AB. This is an example of what type of inheritance pattern?

5

Each person can have one of four possible blood types: A, B, AB, or O. Blood type A means that the "A" antigen is present on the red blood cell surface. Blood type B means that the "B" antigen is present on red blood cells' surfaces. Blood type "AB" means that both the "A" antigen and the "B" antigen are present on the red blood cells' surfaces. Blood type "O" means that no antigens are present on the red blood cells' surfaces.

A mother with blood type A and the genotype "A/O" and a father with blood type B and genotype "B/B" have a child with blood type AB. This is an example of what type of inheritance pattern?

6

In mammals, which type of phenotypic expression will show recessive traits more frequently in males than females?

7

Your neighbor has a flower garden in which there are red flowers and white flowers. These flowers are diploid organisms, and flower color is an autosomal trait. The gene for red flowers (R) is dominant, while the gene for white flowers (r) is recessive.

Which of the following could be the genotype of a red flower?

8

In mammals, which type of phenotypic expression will show recessive traits more frequently in males than females?

9

What is the phenotypic ratio for a cross between a plant with blue flowers BB and a plant with white flowers bb?

10

Your neighbor has a flower garden in which there are red flowers and white flowers. These flowers are diploid organisms, and flower color is an autosomal trait. The gene for red flowers (R) is dominant, while the gene for white flowers (r) is recessive.

Which of the following is the genotype of a white flower?

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