Genetics Basics

Front

What is a genotype?

Back

The actual genes the organism has (genetic makeup).

Front

What is a phenotype?

Back

The physical appearance of the organism.

Front

What does homozygous mean?

Back

Organisms (purebred) that contain two of the same allele, either both dominant (GG) or both recessive (gg).

Front

What does heterozygous mean?

Back

Organisms (hybrid) that contain two different alleles, one dominant and one recessive (Gg).

Front

What is a dominant allele?

Back

An allele that will be expressed if the organism has one or two copies of it.

Front

What is a recessive allele?

Back

An allele that will only be expressed if the organism has two recessive alleles.

Front

What is a gene?

Back

A section of DNA that controls a trait.

Front

What is an allele?

Back

Different forms of a gene.