Punnets & Pedigrees

How are individuals III-2 and II-4 related?

• Brother and sister

• Dad and daughter

• Uncle and niece

• Grandfather and granddaughter

Tags

NGSS.HS-LS3-1

In the second generation of this pedigree, how many people are carriers of the trait?

• 1

• 2

• 3

• 5

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

On this pedigree, the allele for curly hair is dominant. The couple labeled 2 both have curly hair, but have a daughter who does not have curly hair. Therefore, we can tell from the chart that for the couple labeled 2 -

• the male is heterozygous and the female is heterozygous.

• the male is homozygous recessive and the female is homozygous dominant.

Tags

NGSS.HS-LS3-1

The trait this pedigree traces is recessive because it skips a generation and individuals can be carriers. What is the most likely genotype for person III-3?

• GG

• Gg

• gg

Tags

NGSS.HS-LS3-1

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

All males receive their X chromosome from their ________.

• mother
• father
• brother
• sister

Tags

NGSS.HS-LS3-1

What is the genotype of the father?

• AA
• aa
• Aa
• AA or aa

Tags

NGSS.HS-LS3-1

What is the genotype of the mother?

• BB
• bb
• Bb
• BB or Bb

Tags

NGSS.HS-LS3-1

Wet earwax is a dominant trait (E), dry earwax is recessive trait (e).  What is the sex, phenotype, and genotype of individual III-4?

• male, wet earwax, Ee
• male, dry earwax, ee
• male, wet earwax EE
• male, wet earwax, cannot tell genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many girls in this family express this recessive disorder?

• 4
• 5
• 6
• 7

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2