Genetics Vocabulary

The study of heredity.

• Microbiology
• Genetics
• Chemistry
• Astronomy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-1

A characteristic that varies among individuals. Examples include seed color and plant height.

• Chromosome
• DNA
• Trait
• Centromere

Tags

NGSS.MS-LS4-4

A sequence of DNA that codes for a protein and determines a trait.

• Sister Chromatid
• Homologous Chromosomes
• Genetics
• Gene

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-1

The genetic makeup of a trait. For example: Tt or TT (T = tall height)

• Genetics
• Genotype
• Chromosome
•  Eye color

Tags

NGSS.HS-LS3-2

The physical characteristic of a trait. For example: A tall pea plant

• Genotype
• RNA
• DNA
• Phenotype

Tags

NGSS.HS-LS4-4

The different forms of a gene (1 letter). For example: Y= yellow plant or y= red plant

• Punnet Square

• Homologous Chromosomes

• Allele

• Gene

Having two of the same alleles for a trait. For example: TT or tt

• Homozygous
• Heterozygous
• Dominant
• Recessive

Having two different alleles for a trait. For example: Tt

• Homozygous
• Heterozygous
• Dominant
• Recesive

This describes an allele's ability to mask the recessive form and is represented by a capital letter.

• Homozygous
• Heterozygous
• Dominant
• Recessive

This describes an allele's inability to mask the dominant form and is represented by a lower case letter.

• Homozygous
• Heterozygous
• Dominant 
• Recessive