Punnett Squares

Front

What is a Punnett square used for?

Back

A Punnett square is used to predict the probability of certain traits being passed from parents to offspring.

Front

What does the letter 'B' represent in genetics?

Back

In genetics, 'B' typically represents a dominant allele, such as brown fur.

Front

What does the letter 'b' represent in genetics?

Back

In genetics, 'b' typically represents a recessive allele, such as white fur.

Front

What is the probability of obtaining a homozygous dominant offspring from two heterozygous parents (Bb x Bb)?

Back

The probability is 25%.

Front

What is the genotype of an organism with two identical alleles for a trait?

Back

The genotype is homozygous.

Front

What is the genotype of an organism with two different alleles for a trait?

Back

The genotype is heterozygous.

Front

If a parent has the genotype BB, what are the possible alleles they can pass to their offspring?

Back

The parent can only pass the allele 'B'.

Front

What is the expected phenotypic ratio of a monohybrid cross between two heterozygous parents (Bb x Bb)?

Back

The expected phenotypic ratio is 3:1.

Front

What does a phenotype refer to in genetics?

Back

A phenotype refers to the observable traits or characteristics of an organism.

Front

What is the significance of a recessive allele in a Punnett square?

Back

A recessive allele only expresses its trait if the organism has two copies of that allele.