Heredity Lesson 2 and 3 Quiz Study Guide

The physical appearance of an organism is its

• phenotype

• genotype

• alleles

• traits

A number that describes how likely it is that an event will occur

• sum

• product

• probability

• divisor

An organism that as two identical alleles for a trait is

• homozygous

• heterozygous

• genotype

• phenotype

A Punnett square shows the combination of what that parents can pass on to offspring

• traits

• chores

• alleles

• dirty laundry

The genetic makeup of an organism is its

• phenotype

• genotype

• type of jeans

• type of phones

An organism that has two different alleles for a trait is

• homozygous

• heterozygous

• happyozygous

• hurtozygous

Which of these genotypes is heterozygous?

• AA

• Bb

• Cd

• ee

Which of these is NOT a phenotype?

• big feet

• height

• dimples

• homozygous

Which is NOT a way to express probability?

• 2 in 3

• 75 percent

• 7/8

• 38

In a cross between individuals that are Aa xAa, how many boxes of the Punnett square will show an offspring that is AA?

• 1

• 2

• 3

• 4