Genetics Review Flashcard

Front

What is the term for an organism that has two identical alleles for a particular gene?

Back

homozygous

Front

What is the term for the specific combination of alleles an organism has for a particular gene?

Back

genotype

Front

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual, what is this called?

Back

Codominance

Front

What is the term for an organism that has two different alleles for a particular gene?

Back

heterozygous

Front

What is the PHENOTYPE ratio for a cross between a heterozygous and a homozygous recessive parent?

Back

2:2

Front

What is the term for the observable characteristics of an organism?

Back

phenotype

Front

What is the genetic makeup of an organism called?

Back

genotype

Front

What is the term for a cross between two individuals that differ in one trait?

Back

monohybrid cross

Front

What is the term for a trait that is expressed only when two recessive alleles are present?

Back

recessive trait

Front

What is the term for a trait that is expressed when at least one dominant allele is present?

Back

dominant trait