DNA Structure and Replication

Front

What are the base pair rules in DNA?

Back

A-T and C-G are the base pair rules in DNA.

Front

Why does DNA replicate?

Back

DNA replicates to make a copy before the cell divides so each cell has the complete DNA.

Front

What are the components of a nucleotide?

Back

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

Front

What is the complementary strand to the DNA sequence ATACCGCTG?

Back

The complementary strand is TATGGCGAC.

Front

What are the complementary bases that pair with the DNA strand CTAATGT?

Back

The complementary bases are GATTACA.

Front

What is the structure of DNA?

Back

DNA has a double helix structure composed of two strands that wind around each other.

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 is the role of DNA polymerase in DNA replication?

Back

DNA polymerase is an enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the significance of the 5' and 3' ends of a DNA strand?

Back

The 5' and 3' ends indicate the directionality of the DNA strand, which is important for replication and transcription.

Front

What is a mutation in DNA?

Back

A mutation is a change in the DNA sequence that can lead to changes in protein function or expression.