Genes + Alleles

Front

You need ______ of the dominant allele (A) to show the dominant phenotype.

Back

one copy (AA or Aa)

Front

Brown hair is an example of a ______.

Back

phenotype

Front

A portion of DNA that codes for a trait is called a ______.

Back

Gene

Front

Aa is an example of a ______.

Back

genotype

Front

A specific form of a gene is called an ______.

Back

Allele

Front

The physical expression of a trait is known as ______.

Back

phenotype

Front

The genetic makeup of an organism is referred to as its ______.

Back

genotype

Front

An allele that masks the effect of another allele is called ______.

Back

dominant allele

Front

An allele that is masked by the presence of a dominant allele is called ______.

Back

recessive allele

Front

The different forms of a gene found at the same locus on homologous chromosomes are called ______.

Back

alleles