Genetics intro

The physical trait. Example: Brown Hair

• Phenotype

• Genotype

• Bb

• allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Genotype: homozygous dominant

• GG

• Gg

• gg

Tags

NGSS.HS-LS3-1

Genotype: heterozygous

• RR

• Rr

• rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Genotype: homozygous recessive

• TT

• Tt

• tt

Tags

NGSS.HS-LS3-1

Which genotype is the most rare? Example: red hair, green eyes, left handedness, attached earlobes

• Homozygous Dominant

• Heterozygous

• Homozygous Recessive

Tags

NGSS.HS-LS3-3

Brown (B) is the dominant eye color, blue (b) is recessive. Which genotype(s) will show the phenotype brown?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-2