Mendelian, Non-Mendelian, Pedigrees

Front

What is the definition of genotype?

Back

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

Front

What does it mean for an organism to be heterozygous?

Back

An organism is heterozygous when it has two different alleles for a specific gene, such as Rr.

Front

What is the definition of phenotype?

Back

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

Front

What is a Punnett square used for?

Back

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

Front

What does the term 'dominant allele' mean?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

Front

What does the term 'recessive allele' mean?

Back

A recessive allele is an allele that only expresses its trait when two copies are present in the genotype.

Front

In a Punnett square, what does a 1/4 probability indicate?

Back

A 1/4 probability indicates that there is a 25% chance of obtaining that specific genotype or phenotype in the offspring.

Front

What shape on a pedigree represents a male?

Back

A square represents a male in a pedigree chart.

Front

What does a circle represent in a pedigree chart?

Back

A circle represents a female in a pedigree chart.

Front

What is the purpose of a pedigree chart?

Back

A pedigree chart is used to track the inheritance of traits through generations in a family.