DNA Structure and Replication

Front

What is the process by which DNA makes a copy of itself before the cell divides?

Back

DNA replication

Front

What is the name of the enzyme that adds free nucleotides to make new DNA?

Back

DNA Polymerase

Front

What type of bond connects the two strands of DNA?

Back

Hydrogen bond

Front

What rule states that in any given sample of DNA the amount of A is equal to T and the amount of C is equal to G?

Back

Chargaff's Rule

Front

What are complementary base pairs formed between?

Back

Nitrogenous bases

Front

What are the four nitrogenous bases found in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G)

Front

What is the shape of the DNA molecule?

Back

Double helix

Front

What is the role of helicase in DNA replication?

Back

To unwind the DNA double helix.

Front

What is the function of ligase in DNA replication?

Back

To join Okazaki fragments on the lagging strand.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose; RNA is single-stranded and contains ribose.