DNA Structure and Replication

Front

What is the function of DNA helicase during replication?

Back

DNA helicase unwinds and unzips the DNA.

Front

Why is it important for DNA to be copied exactly?

Back

If not, then there will be different instructions passed on to the new cell.

Front

What role does DNA polymerase play in DNA replication?

Back

DNA polymerase builds the new DNA strand.

Front

What are nucleotides made up of?

Back

Nucleotides are made up of a sugar, phosphate, and a nitrogenous base.

Front

During which stage of the cell cycle is DNA replicated?

Back

DNA is replicated during Interphase.

Front

What are the three components of a nucleotide?

Back

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

Front

What is the structure of DNA?

Back

DNA has a double helix structure composed of two strands of nucleotides.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

How do the nitrogenous bases pair in DNA?

Back

Adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

What is the significance of the antiparallel structure of DNA strands?

Back

The antiparallel structure allows for proper base pairing and replication.