Understanding Genetics with Gregor Mendel

Who is known for discovering the principles of heredity?

• Charles Darwin

• Albert Einstein

• Isaac Newton

• Gregor Mendel

What color were the seeds when Mendel crossed a purebred yellow-seeded plant with a green-seeded plant?

• Both green and yellow

• Yellow

• Green

• None of the above

What did Mendel call the yellow-colored trait in his pea plant experiments?

• Recessive

• Dominant

• Hybrid

• Allele

What term did Mendel use to describe the trait that was not expressed in the first generation?

• Dominant

• Recessive

• Hybrid

• Allele

What represents the different variations of a gene?

• Phenotype

• Genotype

• Alleles

• Dominant traits

What is a genotype?

• A type of pea plant

• A diagram used to predict traits

• The combination of alleles

• The physical appearance of a trait

What does a Punnett square help to visualize?

• The history of genetics

• The distribution of alleles among descendants

• The garden layout for pea plants

• The process of self-fertilization

In Mendel's second generation of pea plants, what was the proportion of yellow to green peas?

• 2:2

• All were yellow

• 3:1

• 1:1

What additional traits of peas did Mendel consider in his experiments?

• Pod color and shape

• Seed texture and color

• Height and flower color

• Roundness and color

How are modern scientists able to predict genetic traits and diseases?

• Through Punnett squares only

• Using Mendel's original pea plants

• Based on family history and genetic information

• By guessing based on physical traits