Genetics Remediation

What is a genotype?

• Pair of alleles that determine a specific trait

• Observable physical trait

• A trait that is observed with only one copy of an allele

Tags

NGSS.HS-LS3-1

What is a phenotype?

• Pair of alleles that determine a trait

• Observable physical trait

• Different forms of a gene

Tags

NGSS.HS-LS3-3

What is a dominant gene?

• A trait that is observed when there are one OR two copies of the allele

• A trait that is observed only when there are two copies of the allele

• A trait that can be hidden in a generation

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

If "B" is brown and "b" is blond, what is the phenotype of someone who's genotype is "bb"

• Brown Hair

• Blond Hair

• Red Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a person is heterozygous for brown hair, what is their genotype?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Heterozygous: Different, Homozygous:_____________

• The same

• Less Than

• Greater Than

• 4 copies

This type of disease CANNOT be spread from person to person

• Contagious

• Infectious

• Genetic

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