Punnett Squares & Pedigrees

Which of the following correctly states the genotype probabilities for the offspring of the parents shown in this punnett square?

• 50% heterozygous 50% homozygous dominant

• 50% heterozygous 50% homozygous recessive

• 50% heterozygous 25% homozygous recessive 25% homozygous dominant

• 100% heterozygous

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Gregor Mendel is often called ....

• The father of heredity.
• The father of genetics.
• The king of peas
• The father of punnett squares.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A heterozygous woman marries a homozygous recessive man. What are the chances of a freckled baby?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many alleles (letters) does a child get from each parent?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.HS-LS3-1

AA and Aa always show up as

• dominant
• recessive

Tags

NGSS.HS-LS3-1

aa always shows up as

• dominant
• recessive

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

In a pedigree, what shape represents a male?

• circle
• square
• triangle
• diamond

What does an open circle represent?

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