Mendelian Genetics

Front

What are units of heredity made up of DNA?

Back

Genes

Front

Can two parents who are heterozygous for a trait have offspring with a recessive phenotype?

Back

Yes

Front

What genotype represents homozygous dominant?

Back

RR

Front

What genotype represents a heterozygous hybrid carrier?

Back

Ll

Front

What do we call parents that are both heterozygous?

Back

They are heterozygous.

Front

What is the definition of a phenotype?

Back

The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Front

What is the definition of a genotype?

Back

The genetic constitution of an individual, often represented by letters (e.g., RR, Rr, rr).

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene (e.g., RR or rr).

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene (e.g., Rr).

Front

What is a Punnett square used for?

Back

To predict the genotypes of offspring from a cross between two parents.