genetics, punnett squares, heredity

Front

What is an allele?

Back

An allele is a variant form of a gene that determines a specific trait in an organism.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., TT or tt).

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene (e.g., Tt).

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present (e.g., T in Tt).

Front

What is a recessive allele?

Back

A recessive allele is an allele that only expresses its trait when two copies are present (e.g., tt).

Front

How do you represent a dominant allele in genetics?

Back

A dominant allele is represented by a capital letter.

Front

How do you represent a recessive allele in genetics?

Back

A recessive allele is represented by a lowercase letter.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the genetic outcomes of a cross between two organisms.

Front

What is the probability of producing a homozygous dominant offspring from a Tt x Tt cross?

Back

0%.

Front

What is the probability of producing a short plant from a Tt x Tt cross?

Back

25%.