Pedigrees

In a pedigree, squares represent _______

• males

• females

In a pedigree, circles represent _______

• males

• females

In a pedigree, a person AFFECTED by a trait is

• shaded

• unshaded

How many children did I-3 and I-4 have?

• 2
• 3
• 4
• 5

What is the genotype of the mother? Hint Draw a punnett square

• BB

• bb

• Bb

• BB or Bb

Tags

NGSS.HS-LS3-1

What is the genotype of the father? Hint in this pedigree the shaded circle represents the recessive trait.

• AA

• aa

• Aa

• AA or aa

Tags

NGSS.HS-LS3-1

Generation 2 individuals 5 and 6 are

• brother and sister.

• cousins.

• married.

• not related.

Tags

NGSS.HS-LS3-1

This pedigree traces a dominant trait, freckles F, in a family. The mother has no freckles hence her genotype must be

• ff

• Ff

• FF

Tags

NGSS.HS-LS3-1

This pedigree traces a dominant trait, freckles F, in a family. Is it possible for the third generation to have children with freckles as shown

• yes

• no

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 -

• CC and CC

• CC and cc

• Cc and Cc

• cc and cc

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2