Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, such as Aa.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is DNA?

Back

DNA (deoxyribonucleic acid) is a complex molecule that carries genetic information defining an organism's traits.

Front

What is the difference between dominant and recessive alleles?

Back

A dominant allele is expressed in the phenotype even if only one copy is present, while a recessive allele is only expressed if two copies are present.

Front

What does it mean if an organism is homozygous recessive?

Back

An organism is homozygous recessive if it has two identical recessive alleles for a trait, such as aa.

Front

What is a pedigree chart?

Back

A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism across generations.

Front

What is the expected phenotypic ratio from a monohybrid cross?

Back

The expected phenotypic ratio from a monohybrid cross is typically 3:1 for dominant to recessive traits.