DNA Structure and Replication

Multiple Select

Which of the following are components of a nucleotide?

• Phosphate group

• Nitrogenous base

• Deoxyribose sugar

• Amino acid

Multiple Choice

Which of the following bases are found in DNA?

• Adenine, Thymine, Guanine, Cytosine

• Adenine, Uracil, Guanine, Cytosine

• Adenine, Thymine, Guanine, Uracil

• Adenine, Thymine, Guanine, Lysine

Open Ended

Explain the difference between purines and pyrimidines in the structure of DNA.

Multiple Choice

What type of bond holds the two DNA strands together between the bases?

• Hydrogen bonds

• Ionic bonds

• Peptide bonds

• Covalent bonds

Multiple Select

Select all correct statements about DNA based on the slides:

• DNA is made of nucleotides.

• Adenine pairs with cytosine in DNA.

• DNA in prokaryotes is found in the cytoplasm.

• Guanine pairs with cytosine in DNA.

Multiple Choice

Which of the following statements best describes the location of DNA in prokaryotic cells?

• In the nucleus

• In the cytoplasm

• In the mitochondria

• In the cell membrane

Multiple Choice

Where is eukaryotic DNA located within the cell?

• In the cytoplasm

• Inside the nucleus

• In the mitochondria

• On the cell membrane

Multiple Select

Which of the following are components of eukaryotic chromosome structure?

• Chromatin

• Histones

• Nucleosomes

• Ribosomes

Multiple Choice

What is the function of replication forks during DNA replication?

• They synthesize proteins

• They are the sites where separation and replication occur

• They store genetic information

• They break down old DNA

Multiple Choice

What is the main purpose of DNA replication before a cell divides?

• To ensure each resulting cell has a complete set of DNA molecules

• To create mutations in the DNA

• To reduce the amount of DNA in the cell

• To produce proteins for the cell

Open Ended

Describe the role of the enzyme helicase in DNA replication.

Multiple Select

Which of the following are involved in the process of DNA replication?

• DNA polymerase

• Helicase

• Ribosome

• Replication fork

Multiple Choice

What do you think is the correct order of DNA replication?

• 3, 2, 1, 4
• 2, 1, 4, 3
• 2, 3, 1, 4
• 3, 4, 1, 2

Multiple Choice

Arrange the steps of DNA replication in the correct order based on the diagrams provided.

• Unwinding and unzipping of DNA, construction of new strand, proofreading and error correction

• Construction of new strand, proofreading and error correction, unwinding and unzipping of DNA

• Proofreading and error correction, unwinding and unzipping of DNA, construction of new strand

• Unwinding and unzipping of DNA, proofreading and error correction, construction of new strand

Open Ended

What is one question you still have about DNA structure, replication, or how DNA affects traits?