DNA Replication Insights

Miss Ray introduces DNA replication, emphasizing its role in cell division and growth. The lesson covers the steps of DNA replication, including the roles of DNA helicase and DNA polymerase. Students are encouraged to actively participate by taking notes and practicing base pairing. The concept of semiconservative replication is explained, highlighting the importance of having half old and half new DNA strands. The lesson concludes with a review of key enzymes and a reminder to understand the specific steps and terms discussed.

Why is it important to complete practices during the video?

• To skip the video

• To avoid getting bored

• To ensure the information is fresh in your memory

• To save time later

Where does DNA replication occur in eukaryotic cells?

• Mitochondria

• Nucleus

• Ribosome

• Cytoplasm

What is the role of DNA helicase in DNA replication?

• To synthesize new DNA strands

• To proofread the DNA

• To join Okazaki fragments

• To unzip the double helix

Which enzyme is responsible for adding new nucleotides during DNA replication?

• RNA primase

• DNA polymerase

• DNA ligase

• DNA helicase

What does the term 'semiconservative replication' mean?

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

• DNA is replicated in a conservative manner

• DNA replication is error-free

• DNA is replicated in a semi-random manner

What is the complementary base pair for adenine in DNA?

• Guanine

• Cytosine

• Thymine

• Uracil

What is the significance of the term 'anti-parallel' in DNA replication?

• DNA strands run in opposite directions

• DNA strands are identical

• DNA strands are perpendicular

• DNA strands are parallel

What is the function of DNA polymerase besides adding nucleotides?

• Joining Okazaki fragments

• Unzipping the DNA

• Initiating DNA replication

• Proofreading and fixing errors

Which of the following is NOT an enzyme involved in DNA replication?

• DNA helicase

• DNA ligase

• DNA polymerase

• RNA polymerase

What is the main role of enzymes in DNA replication?

• To speed up the reaction

• To degrade DNA

• To prevent DNA replication

• To slow down the process