ENVIRONMENTAL SCIENCE - FINAL EXAM

Front

What is a mutation?

Back

An error in DNA copying that results in a new trait.

Front

What is the correct sequence of events during sexual reproduction?

Back

B → C → A → D (Meiosis → Fertilization → Mitosis → Birth)

Front

How are the reproductive cycles of males and females regulated?

Back

The reproductive cycles of males and females are regulated by hormones.

Front

Where does protein synthesis occur in the cell?

Back

Ribosome.

Front

What technique is used to separate DNA for analysis?

Back

Electrophoresis.

Front

Define homeostasis.

Back

The process by which living organisms maintain a stable internal environment.

Front

What is meiosis?

Back

A type of cell division that reduces the chromosome number by half, producing gametes.

Front

What are gametes?

Back

Reproductive cells (sperm and eggs) that carry half the genetic information.

Front

What is natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is selective breeding?

Back

The process of breeding plants and animals for specific traits.