Mendelian genetics

A woman with AB blood marries a man with type O blood. What is the probability that they will produce offspring with AB blood?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

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

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

When a man has an allele combination Ww for a trait, what percentage of his gametes will have a dominant allele for that trait?

• 25%
• 50%
• 75%
• 100%

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

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

In certain species of plants, purple flowers (P) are dominant to white flowers (p). If two heterozygous plants are crossed, what will be the phenotype of the offspring?

• 100% purple flowers

• 100% white flowers

• 75% white flowers, 25% purple flowers

• 25% white flowers, 75% purple flowers

Tags

NGSS.MS-LS3-2

Both parents in this Punnet square

• are homozygous dominant
• are homozygous recessive
• are heterozygous
• have blue eyes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

The genotypic ratio here is

• 25% blue eye 75 % brown eye 
• BB = 25% Bb = 50% bb = 25%
• BB= 50 % bb = 50%
• All brown eye

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3