Intro to Genetics

A version of a gene

• Homozygous

• Allele

• Protein

• Carbohydrate

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The allele represented by a capital letter

• Homozygous

• Heterozygous

• Dominant

• Recessive

Tags

NGSS.HS-LS3-3

The allele represented by a lowercase letter

• Homozygous

• Heterozygous

• Dominant

• Recessive

When both alleles in the genotype are the same

• Homozygous

• Heterozygous

• Dominant

• Recessive

When the two alleles in the genotype are different from one another

• Homozygous

• Heterozygous

• Dominant

• Recessive

The allele that is only expressed when there are two copies present

• Homozygous

• Heterozygous

• Dominant

• Recessive

The allele that is expressed when one or two copies are present

• Homozygous

• Heterozygous

• Dominant

• Recessive

TT

• Heterozygous

• Homozygous dominant

• Homozygous recessive

Tags

NGSS.HS-LS3-1

tt

• Heterozygous

• Homozygous dominant

• Homozygous recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Tt

• Heterozygous

• Homozygous dominant

• Homozygous recessive

Tags

NGSS.HS-LS3-2