Mendelian Genetics

Front

What is genetics?

Back

Genetics is the scientific study of heredity, which is how traits are passed from parents to offspring.

Front

How many alleles do you inherit from each parent?

Back

You inherit 1 allele from each parent.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, also known as hybrid.

Front

What is the Law of Segregation?

Back

The Law of Segregation states that alleles for a trait separate during the formation of gametes (meiosis).

Front

If a person has a genotype of RR, what do you know about their gametes?

Back

All gametes will carry the R allele.

Front

What is a genotype?

Back

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

Front

What is a phenotype?

Back

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

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in heterozygous conditions.

Front

What is codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is a purebred organism?

Back

A purebred organism has identical alleles for a trait, meaning it is homozygous.