Genotypes Practice

Front

Homozygous dominant

Back

A genotype consisting of two identical dominant alleles (e.g., FF).

Front

What are alternative forms of a gene called?

Back

Alleles.

Front

Having two of the SAME alleles for a trait.

Back

Homozygous.

Front

How do you classify the following genotype: AA?

Back

Homozygous Dominant.

Front

What is used to show recessive alleles?

Back

Lowercase (small) letters.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by letters (e.g., AA, Aa, aa).

Front

What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What does heterozygous mean?

Back

Having two different alleles for a trait (e.g., Aa).

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even when only one copy is present, while recessive alleles require two copies to express their trait.

Front

What is the significance of a Punnett square?

Back

A tool used to predict the genotypes and phenotypes of offspring from a genetic cross.