Monohybrid Cross Practice

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the combination of alleles (e.g., Aa, BB, gg).

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What is a phenotype?

Back

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

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene (e.g., Bb).

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., BB or bb).

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

What does a 25% probability in a Punnett Square indicate?

Back

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

Front

What is a dominant trait?

Back

A dominant trait is a characteristic that is expressed when at least one dominant allele is present (e.g., G in GG or Gg).

Front

What is a recessive trait?

Back

A recessive trait is a characteristic that is expressed only when two recessive alleles are present (e.g., gg).

Front

What is the genotype of a homozygous dominant organism?

Back

The genotype of a homozygous dominant organism is represented by two dominant alleles (e.g., GG).

Front

What is the genotype of a homozygous recessive organism?

Back

The genotype of a homozygous recessive organism is represented by two recessive alleles (e.g., gg).