Genetics Practice Test - Biology

The scientific study of heredity is called...

• phenomics

• alleles

• genetics

• segregation

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Gregor Mendel studied inheritance of traits in which organism?

• fruit flies

• caper tigers

• honey bees

• pea plants

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What is a "trait"?

• a specific characteristic that varies from one individual to another

• the different form of a gene like "T" vs "t"

• chemical factors that determine phenotypes

• the offspring of crosses between parents with different traits

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What is an "allele"?

• a specific characteristic that varies from one individual to another

• the different form of a gene like "T" vs "t"

• chemical factors that determine phenotypes

• the offspring of crosses between parents with different traits

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In regards to genetics... what is the principle of dominance?

• larger zebras will out compete their smaller counterparts for food

• recessive alleles will "beat out" the dominant allele 75% of the time

• some genes are almost always inherited together

• some alleles are dominant and others are recessive

What are gametes?

• parts of the pea plant that eventually become the stem and leaves

• they are sex cells such as sperm and eggs

• a group of monks that studied inheritance

• a group of kids hanging out at the GameStop

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The process of alleles separating during gamete formation is related to what?

• dominance

• survival of the fittest

• segregation

• probability

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The likelihood that a particular event will occur is called...

• fertilization

• segregation

• probability

• dominance

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This image is known as a(n)

• Phenotype chart

• Punnett Square

• Dihybrid cross

• Tic Tac Toe

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What would go in the red circle?

• TT

• Tt

• tt

• tT

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