Finals Unit 4 Review

Front

What is the leading strand in DNA replication?

Back

The leading strand is the DNA strand that is synthesized continuously during DNA replication, moving in the same direction as the replication fork.

Front

What are the three stages of the cell cycle?

Back

The three stages of the cell cycle are interphase, mitosis, and cytokinesis.

Front

What is cytokinesis?

Back

Cytokinesis is the process in the cell cycle where the cytoplasm divides, resulting in the formation of two separate daughter cells.

Front

What makes up the rungs of a DNA ladder?

Back

The rungs of a DNA ladder are made up of nitrogen bases, which pair specifically (adenine with thymine, and cytosine with guanine).

Front

What is a replication fork?

Back

A replication fork is the area where the DNA double helix is unwound to allow for replication, creating a Y-shaped structure.

Front

What occurs during interphase?

Back

During interphase, the cell grows, duplicates its DNA, and prepares for mitosis.

Front

What is the purpose of mitosis?

Back

The purpose of mitosis is to ensure that each daughter cell receives an identical set of chromosomes.

Front

What are the phases of mitosis?

Back

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

Front

What is the role of nitrogen bases in DNA?

Back

Nitrogen bases store genetic information and determine the traits of an organism through the sequence of their arrangement.

Front

What happens during prophase?

Back

During prophase, the chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and spindle fibers begin to form.