genetics and punnett squares

Front

What is a recessive trait?

Back

A recessive trait is a characteristic that appears only when an organism has two recessive alleles for that trait.

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

Front

What is a genotype?

Back

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

Front

What is a phenotype?

Back

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

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene.

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the genotypes of offspring from a genetic cross.

Front

How do you calculate the probability of a genotype using a Punnett Square?

Back

Each box in a Punnett Square represents the probability of a specific genotype occurring, calculated as a percentage of the total combinations.

Front

What is the expected genotype ratio from a monohybrid cross?

Back

The expected genotype ratio from a monohybrid cross is typically 1:2:1.

Front

What is the expected phenotype ratio from a monohybrid cross?

Back

The expected phenotype ratio from a monohybrid cross is typically 3:1.