The Core Chapter 6 Test Review

What is the monomer of the DNA molecule?

• Polynucleotide

• Monosaccharide

• Nucleotide

• Peptide

What do the letters D-N-A stand for?

• Dioxyribonucleic acid

• Dioxyribonuclear acid

• Deoxyribonucleic acid

• Deoxyrobonuclear acid

What is the type of bond between two strands of DNA?

• A peptide bond

• A hydrogen bond

• A ionic bond

• A covalent bond

What is different from one DNA nucleotide to the next?

• The sugar molecule

• The phosphate group

• The base

• The protein

What are the three components of a DNA nucleotide?

• A sugar, a phosphate and a base

• A sugar, a base, and a polypeptide

• A sugar, a phosphate, and a peptide

• A phosphate, a base, and a polypeptide

If you know that a DNA double helix consists of 20% adenine, what percentage of the DNA double helix is guanine (G)?

• 20%

• 30%

• 80%

• There is not information to know

Which enzyme is responsible for adding complementary DNA bases to an exposed DNA strand?

• DNA helicase

• DNA polymerase

• DNA ligase

• DNA peptidase

What is the main function of DNA helicase in DNA replication?

• Unzipping the DNA double helix

• Adding complementary DNA bases to the newly forming DNA strand

• Proofreading the DNA molecule

• Fusing DNA fragments together

According to the base pairing rules of DNA, if the sequence of bases on one strand was AGGCCTTA, what would be the sequence of bases on the complementary strand?

• AGGCCTTA

• ATTGGGA

• CGGATTC

• TGCGAAT

DNA replication is a semi-conservative process. This means that after replication, ________.

• each new DNA double helix consists of two old strands

• each new DNA double helix consists of one old strand and one new strand

• each new DNA double helix contains 25% of the old DNA double helix

• each new DNA double helix consists of two new strands

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