Biology Reveiw Day 3

Front

What is crossing over?

Back

Crossing over refers to homologous chromosomes exchanging sections of DNA during meiosis.

Front

What does NOT happen during interphase?

Back

Cell division does not happen during interphase.

Front

What part of a nucleotide is represented by a red circle?

Back

The red circle represents the sugar part of a nucleotide.

Front

What part of a nucleotide is represented by a blue circle?

Back

The blue circle represents the phosphate part of a nucleotide.

Front

How is cancer defined?

Back

Cancer is defined as the uncontrolled division of mutated cells.

Front

What are sister chromatids?

Back

Sister chromatids are identical copies of a chromosome, connected by a centromere.

Front

What is the role of DNA replication?

Back

DNA replication is the process of copying DNA to ensure that each daughter cell receives an identical set of chromosomes.

Front

What occurs during prophase of mitosis?

Back

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

Front

What is the function of the cell cycle?

Back

The cell cycle regulates the growth, replication, and division of cells.

Front

What is a nucleotide composed of?

Back

A nucleotide is composed of a sugar, a phosphate group, and a nitrogenous base.