Genetics Vocabulary Flashcard

Front

An organism with two of the same alleles for a trait is called?

Back

Homozygous

Front

What is a section of DNA that codes for a specific trait called?

Back

Gene

Front

A mistake the cell makes when copying DNA, which can be positive, negative, or neutral, is called?

Back

Mutation

Front

The information stored within a gene that tells us about the trait but cannot be physically seen is called?

Back

Genotype

Front

Which type of allele is always expressed when present and is represented using capital letters?

Back

Dominant allele

Front

What do we call the physical expression of a trait in an organism?

Back

Phenotype

Front

What is the term for different forms of a gene?

Back

Alleles

Front

What do we call an organism that has two different alleles for a trait?

Back

Heterozygous

Front

What is the term for an allele that is only expressed when two copies are present?

Back

Recessive allele

Front

What is the genetic makeup of an organism called?

Back

Genotype