DNA Structure and Replication

What is the goal of DNA replication?

• To make a new copy of DNA from an existing strand of DNA.

• To break down DNA into smaller components.

• To convert DNA into RNA for protein synthesis.

• To repair damaged DNA strands.

What is semi-conservative replication?

• It is the process by which each new DNA molecule consists of one original strand and one new strand.

• It is the process by which DNA is replicated without any original strands.

• It is the process by which two identical DNA molecules are formed from one original molecule.

• It is the process by which RNA is synthesized from a DNA template.

How do the nitrogenous bases pair in DNA?

• Adenine pairs with Cytosine (A-C) and Thymine pairs with Guanine (T-G).

• Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).

• Adenine pairs with Guanine (A-G) and Thymine pairs with Cytosine (T-C).

• Cytosine pairs with Thymine (C-T) and Guanine pairs with Adenine (G-A).

What does DNA stand for?

• Deoxyribonucleic Acid

• Dioxyribonucleic Acid

• Deoxyribose Nucleic Acid

• Deoxyribonucleic Base

What is the complementary DNA strand to the following strand: ACT?

• TGA

• CAG

• GTC

• ACT

Which of the following is NOT a part of the DNA nucleotide? Lysine amino acid, Thymine, Deoxyribose, Phosphate?

• Lysine amino acid

• Thymine

• Deoxyribose

• Phosphate

What is the role of DNA polymerase during replication?

• It builds the new DNA strand.

• It unwinds the DNA double helix.

• It repairs damaged DNA strands.

• It synthesizes RNA primers.

What are the three components of a DNA nucleotide?

• A phosphate group, a ribose sugar, and a nitrogenous base.

• A phosphate group, a deoxyribose sugar, and a nitrogenous base.

• A phosphate group, a deoxyribose sugar, and an amino acid.

• A phosphate group, a deoxyribose sugar, and a sugar alcohol.

What are the four nitrogenous bases found in DNA?

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

• Adenine (A), Uracil (U), Cytosine (C), and Guanine (G)

• Adenine (A), Thymine (T), Cytosine (C), and Uracil (U)

• Guanine (G), Thymine (T), Cytosine (C), and Adenosine (A)

What is the role of ligase in DNA replication?

• To unwind the DNA helix before replication.

• To synthesize new DNA strands continuously.

• To join Okazaki fragments on the lagging strand.

• To remove RNA primers from the newly synthesized DNA.