Genetics Review Flashcard

Front

What is the study of inheritance and variation of traits in living organisms called?

Back

Genetics

Front

If T stands for tall and t stands for short, what is the outcome of a cross between TT and tt?

Back

100% of the offspring are tall

Front

What do you call two different alleles for a trait?

Back

Heterozygous

Front

What is the genotype for a heterozygous organism?

Back

Aa

Front

What is the predicted outcome when a homozygous normal fruit fly (e+ e+) is crossed with a homozygous ebony fruit fly (ee)?

Back

All the offspring will have brownish-yellow bodies

Front

What is the term for having two identical alleles for a trait?

Back

Homozygous

Front

In a Punnett Square, what does a capital letter represent?

Back

A dominant allele

Front

In a Punnett Square, what does a lowercase letter represent?

Back

A recessive allele

Front

What is the expected phenotypic ratio of a monohybrid cross between two heterozygous parents?

Back

3:1

Front

What is the purpose of a Punnett Square?

Back

To predict the genetic outcomes of a cross between two organisms