Mendelian Genetics

Front

What is Mendelian Genetics?

Back

Mendelian Genetics is the study of how traits are inherited through generations, based on the principles established by Gregor Mendel.

Front

What is an allele?

Back

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

Front

Define homozygous. Give an example.

Back

Homozygous refers to having two identical alleles for a particular gene. Example: TT or tt.

Front

Define heterozygous. Give an example.

Back

Heterozygous refers to having two different alleles for a particular gene. Example: Tt.

Front

What is a phenotype?

Back

Phenotype is the physical appearance or observable characteristics of an organism.

Front

What is a genotype?

Back

Genotype is the genetic makeup of an organism, representing the alleles it possesses.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even when only one copy is present, while recessive alleles require two copies to express their trait.

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.

Front

What is the phenotypic ratio of a monohybrid cross between two heterozygous parents?

Back

The phenotypic ratio is 3:1.

Front

What is the purpose of a test cross?

Back

A test cross is used to determine the genotype of an individual with a dominant phenotype by crossing it with a homozygous recessive individual.