Unit 6: Gene Expression (part 2)

All 14 questions and answers

1. Coding sequences that are joined together to form the final mRNA?

   Answer: Exons

2. The three modifications made to eukaryotic mRNA before it leaves the nucleus?

   Answer: 5' Cap, Poly-A Tail, and Splicing

3. The molecule that carries the specific amino acid to the ribosome?

   Answer: tRNA

4. A three-nucleotide sequence on mRNA that codes for a specific amino acid?

   Answer: Codon

5. General term for a cluster of bacterial genes transcribed together under one promoter and operator?

   Answer: Operon

6. The DNA segment where RNA Polymerase binds to start transcription?

   Answer: Promoter

7. The DNA "switch" where a repressor protein binds to block transcription?

   Answer: Operator

8. An operon that is usually ON but can be turned OFF (e.g., trp operon)?

   Answer: Repressible Operon

9. An operon that is usually OFF but can be turned ON (e.g., lac operon)?

   Answer: Inducible Operon

10. Modifications to histones or DNA (like methylation) that affect gene expression without changing the DNA sequence?

    Answer: Epigenetics

11. The enzyme that performs transcription by unwinding DNA and adding RNA nucleotides?

    Answer: RNA Polymerase

12. The strand of DNA that is actually "read" by RNA polymerase?

    Answer: Template Strand (Anti-sense)

13. The direction RNA polymerase reads the DNA template?

    Answer: 3' to 5' (to build mRNA 5' to 3')

14. The DNA sequence that signals the end of transcription?

    Answer: Terminator

Play it as a class game

Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.

• Boss Battle
• Racer
• Kaboom
• Sabotage
• Throne
• Splycr
• Cryo
• Outbreak