Cell Cycle & DNA Replication Practice

Front

What is DNA replication?

Back

The process by which a cell makes an exact copy of its DNA, resulting in two identical DNA molecules.

Front

What does 'semi-conservative' mean in the context of DNA replication?

Back

It means that each new DNA molecule consists of one original strand and one newly synthesized strand.

Front

What is the cell cycle?

Back

The series of events that take place in a cell leading to its division and duplication of its DNA to produce two daughter cells.

Front

Which enzyme is responsible for adding nucleotides during DNA replication?

Back

DNA Polymerase.

Front

What base does Guanine bond with?

Back

Cytosine.

Front

What are the main phases of the cell cycle?

Back

Interphase (G1, S, G2) and Mitotic phase (M phase).

Front

What happens during the S phase of the cell cycle?

Back

DNA replication occurs, resulting in the duplication of the genetic material.

Front

What role does Ligase play in DNA replication?

Back

Ligase joins Okazaki fragments on the lagging strand, sealing nicks in the sugar-phosphate backbone.

Front

What is the function of Primase in DNA replication?

Back

Primase synthesizes a short RNA primer to provide a starting point for DNA synthesis.

Front

What is the significance of the G1 phase in the cell cycle?

Back

It is the first gap phase where the cell grows and prepares for DNA synthesis.