Topic 2 Lesson 1

Multiple Choice

Gregor Mendel is best known for his experiments with which type of organism?

• Pea plants

• Fruit flies

• Mice

• Corn

Multiple Select

Which of the following statements are true about Mendel's findings? Select more than one.

• Organisms receive one factor from each parent for every trait.

• One factor can mask the expression of another factor.

• Both factors must be the same for a trait to be expressed.

• Traits are only inherited from the mother.

Multiple Choice

What is a hybrid organism according to Mendel's terminology?

• An organism with two dominant alleles

• An organism with two recessive alleles

• An organism with one dominant and one recessive allele

• An organism with no alleles

Fill in the Blank

A dominant allele is represented with a ___ letter.

Multiple Choice

What tool is used in genetics to determine the probability of certain traits appearing in offspring?

• Punnett Square

• Venn Diagram

• Bar Graph

• Pie Chart

Multiple Choice

What is the difference between genotype and phenotype?

• Genotype is the genetic makeup, while phenotype is the physical expression of genes.

• Genotype is the physical appearance, while phenotype is the genetic makeup.

• Genotype and phenotype are the same thing.

• Genotype refers to visible traits, phenotype refers to invisible traits.

Multiple Choice

Which scientist is known for studying heredity by observing pea plants and their traits?

• Gregor Mendel

• Charles Darwin

• Isaac Newton

• Louis Pasteur