DNA and Punnett Squares

AA and Aa will both show up as ___________________ traits.

• dominant

• recessive

T - tall and t = short

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

• tt

• Tt

• TT

Each one of the boxes on the Punnett square represents what probability of an offspring's genotype?

• 25%

• 1%

• 10%

• 0%

Tags

NGSS.HS-LS3-1

This image shows a...

• Punnett Square

• Phenotype

• Genotype

• Dominant allele

Tags

NGSS.HS-LS3-1

Having two of the SAME alleles for a trait.

• Recessive Trait

• Homozygous

• Genotype

Having two DIFFERENT alleles for a trait.

• Recessive Trait

• Heterozygous

• Genotype

In the punnett square, what is the probability for white fur?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? T = tall t = short

• 0 in 4

• 1 in 4

• 2 in 4

• 4 in 4

Tags

NGSS.HS-LS3-1

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

NGSS.HS-LS3-2

Which of the following genotypes is heterozygous?

• Bb

• BB

• bb

• B