DNA Structure and Replication Concepts

Front

Why does DNA replicate?

Back

To ensure that new cells have a copy of the DNA.

Front

What is needed for DNA replication to unzip at the hydrogen bonds?

Back

Enzymes are required to unzip the DNA at the hydrogen bonds.

Front

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

Back

It means that the process results in two DNA molecules, each containing one original strand and one new strand.

Front

Where is DNA usually found in a cell?

Back

DNA is usually found in the nucleus of the cell.

Front

How are the sides of the DNA molecule arranged?

Back

The sides of the DNA molecule are arranged in an anti-parallel configuration.

Front

What are the building blocks of DNA?

Back

Nucleotides are the building blocks of DNA.

Front

What are the three components of a nucleotide?

Back

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

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

What base pairs with adenine in DNA?

Back

Thymine (T) pairs with adenine (A) in DNA.

Front

What is the role of DNA polymerase in DNA replication?

Back

DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.