Genetics Vocabulary

Front

The passing of genes from parents to offspring is called _____________.

Back

Heredity

Front

The observable characteristics or traits of an organism are an organism's _____________.

Back

Phenotype

Front

Which scientist described how traits are passed from one generation to the next?

Back

Gregor Mendel

Front

If pink flesh (P) is dominant in grapefruits over yellow flesh (p), which of the following are possible genotypes for pink grapefruit?

Back

PP and Pp

Front

A chart used to show all the ways genes from two parents can combine and be passed to offspring is a _____________.

Back

Punnett Square

Front

What is the term for the genetic makeup of an organism?

Back

Genotype

Front

What do we call a trait that is expressed when at least one dominant allele is present?

Back

Dominant trait

Front

What do we call a trait that is only expressed when two recessive alleles are present?

Back

Recessive trait

Front

In genetics, what does the term 'allele' refer to?

Back

Different forms of a gene.

Front

What is the term for an organism that has two identical alleles for a trait?

Back

Homozygous