Genes, Alleles, Genotypes, & Phenotypes

Front

What are alternative forms of a gene called?

Back

Alleles

Front

How is a recessive allele represented?

Back

As a lower case letter

Front

What genotype is homozygous dominant?

Back

AA

Front

What is the definition of a phenotype?

Back

The physical expression of a gene (Characteristics)

Front

What is the definition of a genotype?

Back

The set of genes in our DNA which is responsible for a particular trait.

Front

What is the difference between a genotype and a phenotype?

Back

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

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Front

What is a dominant allele?

Back

An allele that expresses its trait even in the presence of a recessive allele.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present.