Unit 5 Simple Genetics

Front

Which of the following alleles is homozygous recessive? Tt, tt, TT, t

Back

tt

Front

Which of the following is homozygous dominant? Yy, Y, yy, YY

Back

YY

Front

A chart that shows all the possible combinations of alleles that can result from a genetic cross

Back

Punnett Square

Front

The different forms of a gene are called

Back

alleles

Front

Which genotype below best fits in box 2? Options: BB, Bb, bb, bB

Back

Bb

Front

What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)

Back

75 % Brown Hair and 25% Blond Hair

Front

What is the probability of heterozygous offspring?

Back

50%

Front

having two of the same genes for the trait (sometimes called purebred).

Back

homozygous

Front

having two different genes for a trait (sometimes called hybrid)

Back

heterozygous

Front

What do we call the physical expression of the genetic material of an organism?

Back

phenotype