Module 6 Biology

What is the general function of DNA?

• To store and transmit genetic information

• To produce energy for the cell

• To protect the cell from damage

• To produce proteins directly

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which of the following is NOT a part of a nucleotide in DNA?

• Phosphate group

• Deoxyribose sugar

• Nitrogenous base

• Fatty acid tail

Which part of a nucleotide is involved in phosphodiester bonds?

• Phosphate group

• Deoxyribose sugar

• Nitrogenous base

• Both the phosphate group and the sugar

Which part of a nucleotide is involved in hydrogen bonds?

• Phosphate group

• Deoxyribose sugar

• Nitrogenous base

• Both the phosphate group and the sugar

Given the DNA sequence 5' - ATCG - 3', what is the complementary strand's sequence?

• 5' - TAGC - 3'

• 5' - GCTA - 3'

• 3' - TAGC - 5'

• 3' - GCTA - 5'

Which functional group is found at the 5’ end of a DNA strand?

• Hydroxyl group (-OH)

• Phosphate group (-PO4)

• Amino group (-NH2)

• Carboxyl group (-COOH)

Which functional group is found at the 3’ end of a DNA strand?

• Hydroxyl group (-OH)

• Phosphate group (-PO4)

• Amino group (-NH2)

• Carboxyl group (-COOH)

Why is the 3’ end of a DNA strand important for DNA replication?

• It allows RNA polymerase to attach.

• It is where DNA polymerase can add nucleotides.

• It binds to the origin of replication.

• It is where the gene starts being transcribed.

What does “semiconservative replication” mean?

• One of the daughter strands is made from RNA.

• Both strands of DNA are newly synthesized.

• Each daughter DNA molecule has one old and one new strand.

• Replication happens in both directions simultaneously.

What is the role of origins of replication in DNA replication?

• To mark the start of transcription

• To provide the energy for DNA synthesis

• To initiate the separation of DNA strands

• To remove the RNA primers