Punnett Squares

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What do the letters B and b represent in genetics?

Back

B represents a dominant allele (brown eyes) and b represents a recessive allele (blue eyes).

Front

What is the phenotype of an organism?

Back

The phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is the genotype of an organism?

Back

The genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What does it mean if an organism has the genotype BB?

Back

It means the organism has two dominant alleles for a trait.

Front

What does it mean if an organism has the genotype Bb?

Back

It means the organism has one dominant allele and one recessive allele for a trait.

Front

What is the probability of getting a homozygous recessive offspring (aa) from a cross between Aa and Aa?

Back

The probability is 25%.

Front

Who is known as the 'father of genetics'?

Back

Gregor Mendel is known as the 'father of genetics' for his work on inheritance patterns.

Front

What does a Punnett Square show?

Back

A Punnett Square shows the possible genotypes of offspring from a genetic cross.

Front

What is the significance of the 25% probability in a Punnett Square?

Back

It indicates that there is a 25% chance of an offspring having a specific genotype.