Genetics Vocabulary Day 1

A physical characteristic coded for by DNA.

• Allele

• Trait

• Genotype

• Homozygous

Tags

NGSS.HS-LS3-1

The different versions of a trait (gene) represented by letters.

• Allele

• Trait

• Genotype

• Phenotype

Having two of the same alleles for a gene. Also known as purebred or true-breeding.

• Allele

• Trait

• Homozygous

• Heterozygous

Having two different alleles for a gene. Also known as a hybrid.

• Allele

• Trait

• Homozygous

• Heterozygous

The stronger allele represented by a capital letter.

• Dominant

• Recessive

• Genotype

• Phenotype

The weaker allele represented by a lower-case letter.

• Dominant

• Recessive

• Genotype

• Phenotype

The genetic composition of an organism represented by letters.

• Dominant

• Recessive

• Genotype

• Phenotype

The physical appearance of an organism written using words.

• Dominant

• Recessive

• Genotype

• Phenotype

Tags

NGSS.HS-LS4-4

A genetic cross between 2 parents for 1 specific trait.

• Codominance

• Dihybrid

• Monohybrid

• Phenotype

A trait in which both alleles are dominant, resulting in a mixed appearance.

• Monohybrid

• Dihybrid

• Incomplete dominance

• Codominance