Genetics Flashcard 1

Front

What is a dominant trait?

Back

A trait that always appears in the offspring if it is present.

Front

What does heterozygous mean?

Back

It means having two different alleles for a trait, also known as hybrid.

Front

What is homozygous recessive?

Back

It refers to having two identical recessive alleles for a trait, such as 'tt'.

Front

What is a Punnett Square?

Back

A special grid used to predict the possible outcomes of different genetic crosses.

Front

How many alleles does each person carry for a trait?

Back

Each person carries 2 alleles for a trait.

Front

What is a recessive trait?

Back

A trait that only appears in the offspring if both alleles are recessive.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by letters (e.g., TT, Tt, tt).

Front

What is a phenotype?

Back

The physical appearance or observable characteristics of an organism.

Front

What is the difference between purebred and hybrid?

Back

Purebred organisms have identical alleles for a trait, while hybrids have different alleles.

Front

What does it mean if an organism is homozygous dominant?

Back

It means having two identical dominant alleles for a trait, such as 'TT'.