DNA Polymerase Quiz

Emily, Arthur, and Oscar are in a heated debate about DNA replication. Emily thinks that the function of DNA polymerase is to join the fragments of newly replicated DNA. Arthur believes it's for uncoiling the DNA strands. Oscar, on the other hand, argues that it's for adding complementary nucleotides to the new DNA strand. Who is correct?

• Emily: Joining the fragments of newly replicated DNA

• Arthur: Uncoiling the DNA strands

• Oscar: Adding complementary nucleotides to the new DNA strand

• None of them

Answer explanation

DNA polymerase adds complementary nucleotides to the new DNA strand during replication, ensuring accurate base pairing.

Mira, Amelia, and Florence are having a debate. Mira thinks there are 3.2 × 10^9 base pairs of DNA in the average human, while Amelia and Florence have different opinions. Can you help them settle this debate?

• Mira is correct with 3.2 × 10^9

• Amelia is correct with 6 × 10^9

• Florence is correct with 7.5 × 10^13

• None of them are correct, it's 1 × 10^12

Answer explanation

The average human has approximately 3.2 billion base pairs of DNA, which is the correct choice.

Tags

NGSS.HS-LS3-1

Elsie, Scarlett, and Florence are playing a game of 'DNA Replication Role-play'. If Scarlett is playing the role of a helicase, what would be her role in this game?

• She would be adding complementary nucleotides to the new DNA strand

• She would be uncoiling and separating the DNA strands

• She would be proofreading the DNA replication

• She would be joining the fragments of newly replicated DNA

Answer explanation

Helicase plays a crucial role in DNA replication by uncoiling and separating the DNA strands, allowing for the synthesis of new DNA strands.

Freya, Daniel, and Elsie are in a heated debate about DNA replication. They are stuck on one point: Which enzyme is responsible for joining the fragments of newly replicated DNA? Can you help them settle this?

• DNA polymerase

• DNA ligase

• RNA polymerase

• Helicase

Answer explanation

DNA ligase is the enzyme responsible for joining the fragments of newly replicated DNA. It plays a crucial role in the process of DNA replication.

Sebastian, Aarav, and Grace are having a heated debate in their biology class. They are trying to figure out the error rate in DNA replication before proofreading. Can you help them settle this?

• 1 per 10^9 nucleotides

• 1 per 10^6 nucleotides

• 1 per 10^4 nucleotides

• 1 per 10^3 nucleotides

Answer explanation

The error rate in DNA replication before proofreading is 1 per 10^4 nucleotides. This is the correct choice.

Matilda, Sophie, and Kiara are in a heated debate about polymerases in their biology class. They are trying to figure out the main advantage of using Pfu polymerase over Taq polymerase. Can you help them settle this?

• Is it because Pfu polymerase has a faster replication speed?

• Or is it because Pfu polymerase has higher accuracy?

• Maybe it's because of Pfu polymerase's thermostability?

• Or could it be due to Pfu polymerase's proofreading activity?

Answer explanation

The main advantage of using Pfu polymerase over Taq polymerase is its higher accuracy, which ensures more reliable results.

Harry, James, and Leo are in a heated debate about the purpose of the polymerase chain reaction (PCR). Harry thinks it's to proofread the DNA replication, James believes it's to separate the DNA strands, Leo argues it's to join the fragments of newly replicated DNA. But, do you know the real purpose of PCR?

• Harry's idea: To proofread the DNA replication

• James's idea: To separate the DNA strands

• Leo's idea: To join the fragments of newly replicated DNA

• None of the above: To amplify and characterise DNA

Answer explanation

The purpose of the polymerase chain reaction (PCR) is to amplify and characterise DNA. It allows for the production of multiple copies of a specific DNA sequence for further analysis and identification.

Ella, Grace, and Lily are having a heated debate in their biology class. They are discussing what the PCR technique has made possible in genetic screening. Can you help them settle the argument?

• Early detection of infectious diseases

• Identification of individuals based on their DNA

• Determination of the order of each base pair of DNA

• Manipulation of DNA in organisms

Answer explanation

The PCR technique enables the identification of individuals based on their DNA, allowing for accurate genetic screening.

Isabelle, Amelia, and Aarav are playing detective in their school's science fair. They come across a case that requires understanding of DNA polymerase. Can you help them figure out the significance of DNA polymerase in forensic science?

• Is it used for detecting infectious diseases?

• Does it help in proving paternity?

• Is it used for determining the order of base pairs of DNA?

• Or is it used for identifying individuals based on their DNA?

Answer explanation

DNA polymerase is used in forensic science to identify individuals based on their DNA.

Aarav, Charlie, and Oliver are having a heated debate about the Human Genome Project. Can you help them settle it? What did the Human Genome Project determine?

• The accuracy of DNA replication

• The order of each base pair of DNA

• The structure of DNA polymerase

• The function of specific DNA sequences

Answer explanation

The Human Genome Project determined the order of each base pair of DNA, which is the correct choice.

Tags

NGSS.HS-LS1-1