Monohybrid Cross Lesson

Front

Aa is an example of:

Back

Heterozygous - An organism with two different alleles for a trait.

Front

Which of the following is a genotype?

Back

Gg - A genotype represents the genetic makeup of an organism.

Front

An allele whose trait only shows up when no dominant allele is present is called:

Back

Recessive allele - This allele's trait is masked by the presence of a dominant allele.

Front

bb is an example of:

Back

Homozygous recessive - An organism with two identical recessive alleles.

Front

An organism with two different alleles for a trait is said to be:

Back

Hybrid - This term describes an organism with one dominant and one recessive allele.

Front

What is a dominant allele?

Back

A dominant allele is one that expresses its trait even in the presence of a recessive allele.

Front

Define homozygous.

Back

Homozygous - An organism that has two identical alleles for a trait.

Front

What does the term phenotype refer to?

Back

Phenotype - The observable physical characteristics of an organism, determined by its genotype.

Front

What is a Punnett square used for?

Back

Punnett square - A tool used to predict the genetic outcomes of a cross between two organisms.

Front

What is the difference between genotype and phenotype?

Back

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