Heredity Practice

Homozygous or heterozygous?

PP

• Homozygous

• Heterozygous

Homozygous or heterozygous?

Pp

• Homozygous

• Heterozygous

What is a genotype?

• an organism's physical appearance

• an organism's genetic make-up

• an organism's amount of chromosomes

Tags

NGSS.HS-LS3-1

An individual possesses two identical alleles for a certain trait. For this trait, the individual is said to be:

• Dominant

• Hybrid

• Homozygous

• Heterozygous

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

Tags

NGSS.MS-LS3-1

A version or variation of a gene

• trait

• gene

• allele

• DNA

Tags

NGSS.HS-LS3-2

The physical expression of a trait.

• phenotype

• genotype

• chromosome

• allele

Tags

NGSS.HS-LS1-1

For each genotype, indicate whether its heterozygous or homozygous

Groups:

(a) Heterozygous

,

(b) Homozygous

• Ii

• ff

• AA

• Jj

• LL

• Gg

• rr

• Mm

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

For each genotype, indicate whether its homozygous dominant, heterozygous, or homozygous recessive

Groups:

(a) Homozygous Dominant

,

(b) Heterozygous

,

(c) Homozygous recessive

• AA

• rr

• Cc

• Bb

• DD

• ff

• Ii

Purple flowers are dominant to white flowers.

What is the phenotype expressed for the genotype PP?

• Purple flowers

• White flowers