Question 1 (1 point)

Question

Saved
What is the primary function of DNA?

Question 1 options:

Energy storage

Protein synthesis

Cellular respiration

Genetic information storage

Question 2 (1 point)
Saved
What are the monomers (building blocks) of DNA?

Question 2 options:

Amino acids

Nucleotides

Monosaccharides

Fatty acids

Question 3 (1 point)
Saved
Which of the following shows the base-pairing rules in a DNA molecule?

Question 3 options:

Adenine pairs with guanine; cytosine pairs with thymine.

Adenine pairs with cytosine; guanine pairs with thymine.

Adenine pairs with thymine; cytosine pairs with guanine.

Adenine pairs with uracil; cytosine pairs with guanine.

Question 4 (1 point)
Saved
What holds one strand against the other in the double helix?

Question 4 options:

Hydrogen bonds

Covalent bonds

Ionic bonds

Van der Waals forces

Question 5 (1 point)
Saved
What would be the complimentary strand of the following DNA:

ACG GGC TAA GAC

Question 5 options:

AGC CCA AUU CAC

TGC CCG ATT CTG

ACG GGC TAA GAC

TGC CCG TAA GAC

Question 6 (1 point)
Saved
When do cells duplicate their DNA?

Question 6 options:

During mitosis

During meiosis

During the S phase of the cell cycle

During cytokinesis

Question 7 (1 point)
Saved
In the lab, what part of a DNA molecule do the straws represent? The paperclips? The pushpins?

Question 7 options:

Straws represent the 2 bases. Pushpins represent the ionic bonds. Paperclips represent the sugar in the backbone.

Straws represent the sugar in the backbone. Pushpins represent the 4 bases. Paperclips represent the phosphate in the backbone.

Straws represent the covalent bonds. Pushpins represent the 4 bases. Paperclips represent the nucleotide.

Straws represent the sugar in the backbone. Pushpins represent the hydrogen bonds. Paperclips represent the 6 bases.

Question 8 (1 point)
Observe the two strands of your model. Are they identical, or are they complementary?

Question 8 options:

Identical

Complementary

Both identical and complementary

Neither identical nor complementary

Question 9 (1 point)
During DNA replication, which enzyme is responsible for unwinding the double helix and separating the DNA strands?

Question 9 options:

DNA polymerase

Helicase

RNA polymerase

Ligase

Question 10 (1 point)
What is the primary function of DNA polymerase during DNA replication?

Question 10 options:

DNA polymerase is responsible for unwinding the double helix structure.

DNA polymerase adds new nucleotides to the growing DNA strand in the 3' to 5' direction.

DNA polymerase detects and repairs errors in the DNA sequence.

DNA polymerase synthesizes RNA primers to initiate replication.

Answer 1

Here are the suggested answers to your questions:

Question 1:
What is the primary function of DNA?
Answer: Genetic information storage

Question 2:
What are the monomers (building blocks) of DNA?
Answer: Nucleotides

Question 3:
Which of the following shows the base-pairing rules in a DNA molecule?
Answer: Adenine pairs with thymine; cytosine pairs with guanine.

Question 4:
What holds one strand against the other in the double helix?
Answer: Hydrogen bonds

Question 5:
What would be the complimentary strand of the following DNA: ACG GGC TAA GAC
Answer: TGC CCG ATT CTG

Question 6:
When do cells duplicate their DNA?
Answer: During the S phase of the cell cycle

Question 7:
In the lab, what part of a DNA molecule do the straws represent? The paperclips? The pushpins?
Answer: Straws represent the sugar in the backbone. Pushpins represent the 4 bases. Paperclips represent the phosphate in the backbone.

Question 8:
Observe the two strands of your model. Are they identical, or are they complementary?
Answer: Complementary

Question 9:
During DNA replication, which enzyme is responsible for unwinding the double helix and separating the DNA strands?
Answer: Helicase

Question 10:
What is the primary function of DNA polymerase during DNA replication?
Answer: DNA polymerase adds new nucleotides to the growing DNA strand in the 3' to 5' direction.