Punnett Square

Which of the following represents alleles for the homozygous recessive genotype?

• Aa

• aa

• AA

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

This image shows a...

• Punnett Square

• Phenotype

• Genotype

• Dominant allele

Tags

NGSS.HS-LS3-1

What percent of offspring here will be heterozygous?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What percentage of the offspring in the punnett square are shown as a hybrid?

• 100%

• 75%

• 50%

• 25%

Tags

NGSS.HS-LS3-1

In this punnett square, which is the dominant trait?

• purple flower

• white flower

• phenotype

• genotype

Tags

NGSS.HS-LS3-1

What does a Punnett Square help you do?

• Determine the ratio of phenotypes

• Determine the ratio of genotypes

• Predict possible traits the offspring will have

• All of the above

Tags

NGSS.HS-LS3-2

Punnett Squares are used to predict the probability of inheriting traits.

• True

• False

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt

• Tt

• Bb

• TT

Tags

NGSS.HS-LS3-1

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2