9th Grade Biology Final Exam

Front

What is the expected proportion of heterozygous offspring from a cross of two heterozygous parents?

Back

50%

Front

What process is responsible for creating an identical copy of DNA?

Back

Replication

Front

At what temperature does the enzyme work best if the optimal temperature is indicated as 30°C?

Back

30°C

Front

What is the term for the substances formed as a result of a chemical reaction?

Back

Products

Front

What are the primary functions of lipids in biological systems?

Back

Stores energy, insulation, protection

Front

What is the term for the physical location on an enzyme where the substrate binds?

Back

Active site

Front

What is the process by which RNA is synthesized from a DNA template?

Back

Transcription

Front

What is the term for a change in the DNA sequence?

Back

Mutation

Front

What is the role of enzymes in biological reactions?

Back

To speed up the reactions by lowering the activation energy.

Front

What is the basic unit of life?

Back

Cell