Biology Semester 1 Review

Front

What is a mutation in DNA?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is a silent mutation?

Back

A silent mutation is a type of mutation that does not change the amino acid sequence of a protein.

Front

What is a substitution mutation?

Back

A substitution mutation occurs when one base in the DNA sequence is replaced by another base.

Front

What is a deletion mutation?

Back

A deletion mutation occurs when one or more bases are removed from the DNA sequence.

Front

What is an insertion mutation?

Back

An insertion mutation occurs when one or more bases are added to the DNA sequence.

Front

What are the phases of mitosis?

Back

The phases of mitosis are prophase, metaphase, anaphase, and telophase.

Front

What happens during prophase?

Back

During prophase, the chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down.

Front

What distinguishes one nucleotide from another?

Back

The nitrogenous base distinguishes one nucleotide from another.

Front

What is the role of carbohydrates in metabolism?

Back

Carbohydrates are easily metabolized and provide quick energy for cellular processes.

Front

How do lipids compare to carbohydrates in terms of energy?

Back

Lipids provide more energy per gram than carbohydrates.