Monohybrid Cross Quiz

What is a monohybrid cross?

• A cross involving three characters

• A cross involving one character

• A cross involving no characters

• A cross involving two different characters

Who is known for conducting early experiments with pea plants?

• Albert Einstein

• Isaac Newton

• Gregor Mendel

• Charles Darwin

What does a phenotype represent?

• The environment of an organism

• The diet of an organism

• The genetic makeup of an organism

• The physical appearance of an organism

Why was the letter 'D' chosen to represent the gene for tallness?

• Because it was the first letter of the alphabet

• Because it was easier to distinguish between uppercase and lowercase

• Because it was Mendel's favorite letter

• Because it was the only letter available

What is a dominant gene?

• A gene that is only expressed in the presence of another dominant gene

• A gene that is always expressed

• A gene that is never expressed

• A gene that masks the effect of a recessive gene

What is the purpose of a Punnett square?

• To determine the diet of an organism

• To determine the lifespan of an organism

• To determine the possible genetic combinations of offspring

• To determine the physical traits of an organism

What is the genotype of the F1 generation in Mendel's experiment?

• Homozygous dominant

• Heterozygous

• Homozygous recessive

• None of the above

What is the phenotypic ratio of the F2 generation?

• 4:0

• 1:1

• 3:1

• 2:2

How many offspring would be expected to be tall if 100 F2 offspring were produced?

• 100

• 50

• 75

• 25

What is the genotypic ratio of the F2 generation?

• 3:1:0

• 1:1:1

• 1:2:1

• 2:1:2