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-LS3-3

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-3

Which of the following is a phenotype?

• Aa
• black hair
• heterozygous genes
• mutated DNA

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a dominant allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different

Tags

NGSS.HS-LS3-1

This image shows a...

• Punnett Square
• Phenotype
• Genotype
• Dominant allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Aa, DD, Ba, and yy are all examples of ---

• genotypes

• phenotypes

Tags

NGSS.HS-LS3-1

AA and Aa always show up as ---

• dominant.

• recessive.

Tags

NGSS.HS-LS3-1

Fill in the Yellow Box

• AA

• Aa

• aa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2