Genetics Vocabulary

The different versions of a gene or one of a pair of genes

• Dominant

• Recessive

• Allele

• Phenotype

The actual gene makeup of an organism ( Tt)

• Genotype

• Phenotype

• Trait

• Characteristic

An organism that has alleles that are different for a trait (Tt)

• Homozygous

• Heterozygous

• Allele

• Trait

A special chart used to show possible gene combinations

• Line graph

• Circle Graph

• Punnett Square

• Pie Graph

An organism with two alleles that are the same (TT or tt)

• Homozygous

• Heterozygous

• Trait

• Allele

Coiled up DNA forms X shaped structures called

• DNA Coils
• Chargraffs
• Chromosomes
• Alleles

Segment of DNA found in chromosomes that give instructions for producing a certain characteristic

• Dominant

• Recessive

• Gene

• Phenotype

The physical appearance or the visible characteristic "What you see"

• Genotype

• Phenotype

• Allele

• Dominant

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

• Chromosome
• DNA
• Trait
• Centromere

Select the answer that shows only Genotypes

• Gg, Green
• DD, Ff
• Tall, Blue
• Ss, Square