Genetics and Heredity Concepts

Front

What is an allele?

Back

An allele is a specific form of a gene that determines a particular trait, such as green peas versus yellow peas.

Front

What does heterozygous mean?

Back

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

Front

Who is known as the Father of Genetics?

Back

Gregor Mendel is considered the Father of Genetics for his work on inheritance patterns in pea plants.

Front

What does homozygous recessive mean?

Back

Homozygous recessive means having two identical recessive alleles for a trait, such as hh.

Front

If a plant has white flowers, what is its genotype if red (R) is dominant and white (r) is recessive?

Back

The genotype of a plant with white flowers would be rr.

Front

What is a dominant allele?

Back

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

Front

What is a recessive allele?

Back

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

Front

What is the genotype for homozygous dominant?

Back

The genotype for homozygous dominant consists of two identical dominant alleles, such as RR.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross.