DNA Structure and Function Review

Front

What is a nucleotide in DNA composed of?

Back

A nucleotide in DNA is composed of a deoxyribose sugar, a phosphate group, and a nitrogen base (adenine, thymine, cytosine, or guanine).

Front

What are the rungs of the DNA ladder structure made of?

Back

The rungs of the DNA ladder structure are made of pairs of nitrogen bases.

Front

What is the role of DNA Polymerase?

Back

DNA Polymerase is an enzyme that matches new nucleotides with the complementary base to an original single strand during DNA replication.

Front

Which nitrogen base does guanine bond with?

Back

Guanine bonds with cytosine.

Front

What is the structure of DNA commonly described as?

Back

The structure of DNA is commonly described as a double helix.

Front

What are the four nitrogen bases found in DNA?

Back

The four nitrogen bases found in DNA are adenine, thymine, cytosine, and guanine.

Front

What is the function of the phosphate group in a nucleotide?

Back

The phosphate group in a nucleotide helps to link nucleotides together, forming the backbone of the DNA strand.

Front

What is the significance of complementary base pairing in DNA?

Back

Complementary base pairing ensures accurate replication of DNA, as adenine pairs with thymine and guanine pairs with cytosine.

Front

What is the difference between DNA and RNA in terms of sugar?

Back

DNA contains deoxyribose sugar, while RNA contains ribose sugar.

Front

What is the function of helicase in DNA replication?

Back

Helicase is an enzyme that unwinds and separates the two strands of DNA during replication.