Genetics TEST Review

Front

What is probability?

Back

The mathematical chance that an event will occur.

Front

What does the notation TT mean in genetics?

Back

Two dominant alleles.

Front

What is the probability of a black fur offspring from a homozygous black guinea pig (BB) and a homozygous white guinea pig (bb)?

Back

100 percent.

Front

What is a widow's peak hairline in terms of genetic traits?

Back

A dominant trait.

Front

What is a straight hairline in terms of genetic traits?

Back

A recessive trait.

Front

If two heterozygous plants (Gg) are crossed, what is the probability of getting a recessive trait (gg)?

Back

25%.

Front

Define homozygous.

Back

An organism with two identical alleles for a trait.

Front

Define heterozygous.

Back

An organism with two different alleles for a trait.

Front

What is a Punnett square used for?

Back

To predict the genetic outcomes of a cross between two organisms.

Front

What is the genotype of an organism with a widow's peak hairline if the trait is dominant?

Back

It can be either homozygous dominant (WW) or heterozygous (Ww).