Punnets and Pedigrees

Homozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Heterozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is a phenotype?

• Aa
• black hair
• heterozygous genes
• mutated DNA

Why do scientist use Punnett Squares?

• A tool scientist use to to see alleles

• A tool scientist use to see which alleles are dominant

• A tool scientist use to determine possible genotypes for offspring

In a Punnett Square, 1 box is equal to 25%. How much are 3 boxes equal to?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

Fill in the Yellow Box

• AA

• Aa

• aa

Tags

NGSS.HS-LS3-1

How chance the offspring born from this cross will have a homozygous dominant genotype?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What is the mother's genotype?

• DD

• Dd

• dd

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A chart that displays family relationships indicating traits or disorders

• Punnett square

• Pedigree

• Karyotype chart