Practice P-Squares

A man, who has red-green colorblindness, and his wife, who is a carrier for colorblindness, have a colorblind son. What is the probability that their next son will also be colorblind?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A woman heterozygous for A blood marries a man heterozygous for B blood. What is the probability that they will produce offspring with AB blood?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS4-3

What is the chance of two parents with blood types AB and O producing an offspring with blood type O?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-3

Black hair color is dominant to white hair color in mice.  Determine the phenotypic ratio for the offpring of a heterozygous black mouse and a white mouse.

• 4 Black: 0 White
• 3 Black: 1 White
• 2 Black: 2 White
• 0 Black: 4 White

Tags

NGSS.HS-LS3-3

Genetic crosses involving a particular type of flower exhibit complete dominance with respect to petal color. Red (R) is dominant to white (r). Using the Punnett square, what is the expected percentage of offspring that will have white flowers from a cross of parent flowers with a genotype of Rr.

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-3

Red-green color blindness is an X-linked recessive trait. A red-green color-blind woman and a red-green color-blind man have a son. What is the probability that the son is also red-green color-blind?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A man with type O blood has children with a woman who is heterozygous for type A blood. What is the probability that their children will have type A blood?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In a certain species of rabbits, black coat color is dominant over brown coat color. What is the probability of producing a rabbit with brown coat color from two rabbits that are both heterozygous for black coat color?

• 0%
• 25%
• 75%
• 100%

Tags

NGSS.HS-LS3-3

Tay-Sachs disease is a lethal, autosomal recessive genetic disorder. If both parents are heterozygous carriers of the disease, what are the chances of them having a child who is also a heterozygous carrier for Tay-Sachs?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Biologists have found that a form of deafness is a recessive trait in dogs. If a female dog that is heterozygous for the trait mates with a male dog that is deaf, what percent of their offspring will be deaf?

• 0%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2