Understanding DNA Processes

What are the three main processes discussed in the video that are crucial for understanding DNA?

• Synthesis, Translation, Mutation

• Replication, Mutation, Synthesis

• Transcription, Translation, Mutation

• Transcription, Translation, Replication

Why is it important to focus on the nuances of DNA questions in exams?

• They are not graded.

• They are not relevant to the syllabus.

• They often contain tricky mutations.

• They are always the easiest questions.

What is the purpose of pausing the video to attempt the question before watching the solution?

• To save time.

• To test your understanding before seeing the explanation.

• To skip the difficult parts.

• To avoid watching the video.

What is the main clue in the diagram that indicates the process of translation?

• Presence of a nucleus.

• Presence of a ribosome.

• Presence of a mitochondrion.

• Presence of a chloroplast.

What is the role of tRNA in protein synthesis?

• To replicate DNA.

• To transport amino acids to the ribosome.

• To synthesize lipids.

• To break down proteins.

Which nitrogenous bases pair together in RNA?

• Adenine and Thymine

• Cytosine and Thymine

• Adenine and Uracil

• Guanine and Thymine

What happens to the protein if the DNA sequence is altered?

• The protein remains unchanged.

• The protein becomes a carbohydrate.

• The protein may change due to altered amino acids.

• The protein is destroyed immediately.

How does a change in DNA affect mRNA and tRNA?

• It has no effect.

• It only affects the tRNA.

• It changes the mRNA but not the tRNA.

• It changes both mRNA and tRNA.

What should you do to ensure full marks in mutation questions?

• Ignore the mRNA and tRNA changes.

• Only describe the DNA change.

• Focus only on the final protein.

• Describe changes in DNA, mRNA, tRNA, and amino acids.

Why is it important to check if different codons code for the same amino acid?

• To make the question easier.

• To confuse the examiner.

• To ensure the protein is not changed.

• To avoid unnecessary calculations.