Genetics

What is a phenotype?

• Pair of alleles that determine a trait

• Observable physical trait

• Different forms of a gene

If a person is heterozygous for a trait, their genotype can be...

• Aa

• AA, aa

• AA, Aa

• AA

P= purple petals and p= white petals. What genotype(s) would result in purple petals?

• pp

• Pp, pp

• PP, Pp

• PP, pp

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many copies of the recessive gene must there be for that phenotype to show up?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

What is the missing pairing?

• AA

• Aa

• aa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Using the Punnett Square, identify the correct Genotypic ratio

• 2:2:1

• 1:2:1

• 2:1:1

• 1:1:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Based on the missing letter, what is the parent's genotype?

• AA

• Aa

• aa

Tags

NGSS.HS-LS3-1

What is a trait?

• A physical characteristic passed down from your mom

• A behavioral characteristic passed down from your dad

• A physical or behavioral characteristic passed down from your parents

• A behavioral characteristic passed down by your mom

Tags

NGSS.HS-LS3-1

A person who is homozygous for a trait can have a genotype of....

• AA, Aa

• Aa, aa

• AA, aa

• aa

If "B" represents brown hair, and "b" represents blond hair, what will the genotype be for a homozygous brown haired person?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1