Semester 1 Review 2023

Front

What is the genotype for a blue-eyed child in humans?

Back

bb (blue eyes are a recessive trait)

Front

How do cancer cells differ from normal cells?

Back

Cancer cells go through the cell cycle too quickly.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from areas of high concentration to areas of low concentration until equilibrium is reached.

Front

What type of biological molecule are enzymes?

Back

Enzymes are proteins.

Front

What is the phenotype for a child with the genotype Bb?

Back

Brown eyes (B is dominant over b).

Front

Define dominant trait.

Back

A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

Front

Define recessive trait.

Back

A recessive trait is one that is only expressed in the phenotype when two copies of the allele are present.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions in the body.

Front

What is the cell cycle?

Back

The cell cycle is the series of phases that a cell goes through to divide and replicate.

Front

What is equilibrium in the context of diffusion?

Back

Equilibrium is the state where the concentration of molecules is equal throughout a space.