Some Review Questions for the Final

Front

What happens to the number of chromosomes in cells at the completion of meiosis compared to cells just about to begin meiosis?

Back

They have half the number of chromosomes.

Front

What is the process called where better adapted organisms survive to pass traits along to offspring?

Back

Natural Selection.

Front

What term describes the child or young of two parents?

Back

Offspring.

Front

What is an example of a vestigial structure in humans?

Back

Wisdom teeth.

Front

What term describes the blending of traits, such as wavy hair being a mix of curly and straight hair?

Back

Incomplete Dominance.

Front

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

Back

Genotype.

Front

What is the observable physical or biochemical characteristics of an organism called?

Back

Phenotype.

Front

What is the term for a trait that is expressed only when two copies of the allele are present?

Back

Recessive trait.

Front

What is the term for a trait that is expressed when at least one copy of the allele is present?

Back

Dominant trait.

Front

What is the process by which organisms change over time through descent with modification?

Back

Evolution.