AP Punnett Squares and Pedigree

If having hairy feet is a dominant trait what are the possible genotypes of a hairy foot person?

• HH or hh
• Hh or hh
• HH or Hh

Tags

NGSS.HS-LS3-2

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

 One dog carries homozygous, long-haired traits (SS), and its mate carries homozygous short-haired traits (ss). Use a Punnett square to determine the probability of one of their offspring having long hair.

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

B = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.

• they have same phenotype and genotype
• they have different genotypes and phenotypes
• they have same phenotype but different genotypes
• they have same genotype but different phenotypes

Tags

NGSS.HS-LS3-1

In a plant called jimsonweed, flowers can be white or purple. A jimsonweed plant with white flowers is crossed with a jimsonweed plant with purple flowers. All of the offspring have purple flowers.

Based on the results of the cross, which of the following statements most likely describes the alleles for flower color in jimsonweed?

• The allele for purple flowers is recessive to the allele for white flowers.

• The allele for purple flowers is dominant to the allele for white flowers.

• The allele for purple flowers has mutated more times than the allele for white flowers.

• The allele for purple flowers is on a different chromosome than the allele for white flowers.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Phenylketonuria (PKU) is inherited as a recessive condition. A man with PKU marries a woman without any alleles for PKU. What is the probability that their child will have PKU?

• 0%

• 25%

• 50%

• 75%

Jabba the Hutt has finally decided to settle down and have a family. He has undergone genetic testing and learned that he is heterozygous for Hutt Fungal Syndrome, which is caused by recessive alleles. He is worried that his children might suffer from this syndrome. His Hutt mate has undergone genetic testing and discovered she is homozygous dominant for the syndrome. Should Jabba be worried?

• Yes
• No

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A Jawa notices that his beloved pet desert rat, who has brown fur, just had several rat babies, some of which had white fur and some which had brown fur. Brown fur is the dominant trait. This means his rat must have what genotype?

• Homozygous Dominant
• Heterozygous
• Homozygous Recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What do we use pedigrees for?

• To look at families
• To make determinations about the offspring
• To track traits in families
• Nothing

This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?

• 8
• 5
• 2
• 3

Tags

NGSS.HS-LS3-1