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 does the letter 'G' represent in genetics?

Back

In genetics, 'G' typically represents a dominant allele, while 'g' represents a recessive allele.

Front

What is the genotype for a yellow plant if yellow is recessive?

Back

The genotype for a yellow plant is 'gg'.

Front

How are dominant alleles represented?

Back

Dominant alleles are represented by capital letters.

Front

What is a heterozygous genotype?

Back

A heterozygous genotype has two different alleles for a trait, such as 'Gg'.

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a trait, such as 'GG' or 'gg'.

Front

What is the phenotype?

Back

The phenotype is the physical appearance or observable characteristics of an organism.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the physical expression of that genetic makeup.

Front

In a heterozygous genotype, which allele is expressed in the phenotype?

Back

In a heterozygous genotype, the dominant allele is expressed in the phenotype.

Front

What does it mean if an organism is homozygous dominant?

Back

An organism is homozygous dominant if it has two dominant alleles for a trait, such as 'GG'.