Punnett Squares and Pedigrees

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the genetic makeup of offspring from two parents based on their genotypes.

Front

What does the letter 'B' represent in genetics?

Back

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

Front

What does the letter 'b' represent in genetics?

Back

In genetics, 'b' typically represents a recessive allele, such as blonde hair.

Front

What is the probability of an offspring having brown hair if the parents are Bb and Bb?

Back

75%.

Front

What does each box in a Punnett Square represent?

Back

Each box represents a 25% probability of an offspring's genotype.

Front

What does an open circle represent in a pedigree chart?

Back

An open circle represents a Not Affected Female.

Front

What does a filled circle represent in a pedigree chart?

Back

A filled circle represents an Affected Female.

Front

What does a filled square represent in a pedigree chart?

Back

A filled square represents an Affected Male.

Front

What is the purpose of a pedigree chart?

Back

To track traits in families and understand inheritance patterns.

Front

How many offspring did the parents in the first generation have if they had 4 children?

Back

4.