Heredity

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism (the alleles it carries), while phenotype refers to the observable traits or characteristics of that organism.

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 an allele?

Back

An allele is a variant form of a gene that can produce different traits.

Front

How many alleles does a child inherit from each parent for a given trait?

Back

A child inherits one allele from each parent for each trait, making a total of two alleles.

Front

What is the definition of a recessive allele?

Back

A recessive allele is an allele that only expresses its trait when two copies are present (homozygous recessive).

Front

What is the definition of a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present (heterozygous or homozygous dominant).

Front

What is the phenotype of an organism with the genotype Bb?

Back

The phenotype of an organism with the genotype Bb would be the dominant trait associated with the B allele.

Front

What is the significance of the Punnett square in genetics?

Back

The Punnett square is a tool used to predict the genotypes and phenotypes of offspring from a genetic cross.

Front

What is the term for an organism's genetic makeup?

Back

The term for an organism's genetic makeup is its genotype.