Punnett Squares and Pedigrees

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

Tags

NGSS.HS-LS3-3

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%
• 50%
• 0%
• 75%

Tags

NGSS.HS-LS3-3

How many individuals are there in the 3rd generation?

• 2
• 3
• 4
• 6

Tags

NGSS.HS-LS3-1

What do we use pedigrees for?

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

What does a filled in square represent?

• Not affected Female
• Not affected Male
• Affected Male
• Affected Female

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many kids did the mother and father from the first generation have?

• 2
• 4
• 5
• 6

What does an open circle represent?

• Not Affected Male
• Not Affected Female
• Affected Male
• Affected Female

Tags

NGSS.HS-LS3-1

What is this?

• Pedigree
• Karyotype
• Venn diagram
• Punnett Square

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

T - tall and t = short

In the Punnett square, what belongs in the missing square?

• tt

• Tt

• TT

Tags

NGSS.HS-LS3-1