Exploring DNA and Cell Biology

What is the basic structural unit of DNA?

• Amino acid

• Nucleotide

• Fatty acid

• Monosaccharide

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DOK Level 1: Recall

Which phase of the cell cycle is primarily responsible for DNA replication?

• G1 phase

• S phase

• G2 phase

• M phase

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DOK Level 1: Recall

Which of the following is a characteristic of prokaryotic cells?

• Presence of a nucleus

• Absence of membrane-bound organelles

• Larger in size compared to eukaryotic cells

• Presence of mitochondria

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DOK Level 1: Recall

What is the role of DNA polymerase in DNA replication?

• Unzipping the DNA double helix

• Synthesizing new DNA strands

• Joining Okazaki fragments

• Adding RNA primers

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DOK Level 1: Recall

Which of the following is NOT a type of biomolecule?

• Carbohydrates

• Lipids

• Proteins

• Minerals

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DOK Level 1: Recall

Compare the cell division process in prokaryotic and eukaryotic cells.

• Both use mitosis

• Prokaryotic cells use binary fission, eukaryotic cells use mitosis

• Both use binary fission

• Prokaryotic cells use mitosis, eukaryotic cells use binary fission

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DOK Level 2: Skill/Concept

Explain why enzymes are crucial for DNA replication.

• They provide energy for the process

• They speed up the chemical reactions involved

• They act as a template for new DNA strands

• They prevent DNA from being damaged

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DOK Level 2: Skill/Concept

Identify the phase of the cell cycle where the cell prepares for mitosis.

• G1 phase

• S phase

• G2 phase

• M phase

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DOK Level 2: Skill/Concept

How do the structures of prokaryotic and eukaryotic cells differ in terms of genetic material organization?

• Both have linear DNA

• Prokaryotic cells have circular DNA, eukaryotic cells have linear DNA

• Both have circular DNA

• Prokaryotic cells have linear DNA, eukaryotic cells have circular DNA

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DOK Level 2: Skill/Concept

Analyze the impact of a malfunctioning helicase enzyme on DNA replication.

• DNA replication would proceed normally

• DNA strands would not separate, halting replication

• New DNA strands would be synthesized incorrectly

• RNA primers would not be added

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DOK Level 3: Strategic Thinking