Biology B Module 1 Test Review

What did Gregor Mendel study to understand heredity?

• Mice

• Corn plants

• Fruit flies

• Pea plants

What is the passing of traits from parents to offspring called?

• Evolution

• Mutation

• Genetics

• Heredity

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Before Mendel, how did people believe traits were inherited?

• By genetic modification

• By natural selection

• By selective breeding

• Through random blending

Which characteristic did Mendel NOT study in pea plants?

• Leaf size

• Stem length

• Seed shape

• Flower color

What type of inheritance pattern did Mendel's experiments reveal?

• Blended inheritance

• Polygenic traits

• Dominant and recessive traits

• Linked inheritance

Which type of allele is only expressed when a dominant allele is not present?

• Dominant

• Recessive

• Codominant

• Incomplete dominant

In genetics, what does the symbol 'Tt' represent?

• Incomplete dominance

• Homozygous dominant

• Homozygous recessive

• Heterozygous

What is the physical appearance of an organism called?

• Genotype

• Phenotype

• Allele

• Gene

What is the genetic makeup of an organism called?

• Phenotype

• Allele

• Chromosome

• Genotype

Tags

NGSS.HS-LS1-1

In a monohybrid cross, what is the expected phenotypic ratio of the offspring from two heterozygous parents?

• 9:3:3:1

• 3:1

• 1:1

• 1:2:1