DNA and DNA Replication

Front

What are the building blocks of DNA?

Back

Nucleotides are the units that are repeatedly joined together to form a strand of DNA.

Front

How do you replicate a DNA strand?

Back

To replicate the DNA strand AATCATGGA, the complementary strand is TTAGTACCT.

Front

What is the role of helicase in DNA replication?

Back

Helicase is the enzyme that unzips the DNA double helix to prepare for replication.

Front

What determines the genetic code in DNA?

Back

The order (sequence) of the nitrogen bases determines the code or information of a DNA molecule.

Front

Why is DNA considered the blueprint of life?

Back

DNA serves as the blueprint for traits of all living things.

Front

What are the three components of a nucleotide?

Back

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

Front

What are the four nitrogen bases in DNA?

Back

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

Front

How do adenine and thymine pair in DNA?

Back

Adenine pairs with thymine through two hydrogen bonds.

Front

How do cytosine and guanine pair in DNA?

Back

Cytosine pairs with guanine through three hydrogen bonds.

Front

What is the function of DNA polymerase?

Back

DNA polymerase is the enzyme that synthesizes new DNA strands by adding nucleotides to a growing chain.