Heredity and Punnett Squares

Front

What is a homozygous dominant genotype?

Back

A genotype with two identical dominant alleles, represented as 'FF'.

Front

What is the probability of offspring having white fur if one parent is Bb and the other is bb?

Back

50% chance of having white fur.

Front

Define homozygous.

Back

An organism with two identical alleles for a trait, also known as purebred.

Front

What is a heterozygous genotype?

Back

A genotype with two different alleles for a trait, represented as 'Bb'.

Front

What does it mean if an allele is dominant?

Back

It is the allele that expresses its trait even when paired with a recessive allele.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present (homozygous recessive).

Front

In pea plants, what does 'T' represent?

Back

The tall allele, which is dominant over the short allele.

Front

If a tall pea plant (Tt) is crossed with a short pea plant (tt), what is the probability of getting a tall plant?

Back

50% chance of getting a tall plant.

Front

What is a Punnett square used for?

Back

To predict the genetic outcomes of a cross between two organisms.

Front

What does it mean for an organism to be purebred?

Back

It has identical alleles for a specific trait, either homozygous dominant or homozygous recessive.