Amoeba Sisters Alleles and Genes

Front

What is an allele?

Back

An allele is a variant form of a gene that determines a specific trait, such as hair color.

Front

What does the term 'genotype' refer to?

Back

Genotype refers to the genetic makeup of an individual, specifically the alleles they possess.

Front

What does the term 'phenotype' refer to?

Back

Phenotype refers to the observable characteristics or traits of an individual, such as hair color or height.

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present (e.g., B for blonde hair).

Front

What is a recessive allele?

Back

A recessive allele is an allele that only expresses its trait when two copies are present (e.g., b for brown hair).

Front

What is a Punnett Square?

Back

A Punnett Square is a tool used to predict the possible genetic outcomes of a cross between two individuals.

Front

If a person has the genotype Bb, what is their phenotype?

Back

Their phenotype would be blonde hair, as the dominant allele (B) is expressed.

Front

If a person has the genotype bb, what is their phenotype?

Back

Their phenotype would be brown hair, as they have two recessive alleles.

Front

What is the purpose of using a Punnett Square?

Back

The purpose is to visualize and calculate the probability of offspring inheriting particular traits.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., BB or bb).