Genetics Quiz

What is the term used to describe the physical appearance of an organism?

• Phenotype

• Genotype

• Allele

• Trait

Which of the following represents a homozygous dominant genotype?

• TT

• Tt

• tt

• T

In Mendel's experiments, what trait reappeared in the F2 generation?

• Recessive

• Dominant

• Incomplete dominance

• Codominance

What is the term for a cross between individuals that involves one pair of contrasting traits?

• Monohybrid cross

• Dihybrid cross

• Trihybrid cross

• Polyhybrid cross

What is the expected phenotypic ratio in the F2 generation of a monohybrid cross?

• 3:1

• 1:2:1

• 9:3:3:1

• 1:1

Which type of inheritance involves both alleles being expressed equally in the phenotype?

• Codominance

• Incomplete dominance

• Complete dominance

• Recessive

What is the term for the genetic makeup of an organism?

• Genotype

• Phenotype

• Allele

• Trait

Which of the following is an example of incomplete dominance?

• A red flower and a white flower producing pink offspring

• A tall plant and a short plant producing all tall offspring

• A black cat and a white cat producing black and white spotted offspring

• A blue-eyed person and a brown-eyed person producing a brown-eyed child

What is the term for the observable characteristics of an organism?

• Phenotype

• Genotype

• Allele

• Trait

Which of the following is an example of a homozygous recessive genotype?

• tt

• Tt

• TT

• T