Genetics Quiz

Genetics and Medicine Quiz Review Notes

Overview

  • Course Information:

    • Course: 2409_INTRODUCTION TO BIOLOGY [2409_BIOL_1010_02]

    • Student: Nicholas Saintvil

    • Test: Genetics and Medicine Quiz

    • Date Started: 10/11/24 at 10:02 AM

    • Date Submitted: 10/11/24 at 10:10 AM

    • Status: Completed

    • Score: 46 out of 50 points

    • Time Elapsed: 8 minutes in a 40-minute timeframe

Key Concepts and Answers

Questions and Answers

  1. Promoter Region & Lac Repressor in E. coli

    • Statement: The promoter region is the binding site for the lac repressor in E. coli.

    • Selected Answer: False

    • Correct Answer: True

  2. Introns in mRNA

    • Statement: Introns are non-coding and not included in the final mRNA that is translated.

    • Selected Answer: False

    • Correct Answer: True

  3. Rosalind Franklin's Nobel Prize

    • Statement: Rosalind Franklin was awarded a Nobel Prize for her work in DNA x-ray diffraction.

    • Selected Answer: False

    • Correct Answer: True

  4. Nitrogenous Bases and Protein Synthesis

    • Statement: The order of nitrogenous bases in DNA determines the order of amino acids in proteins.

    • Selected Answer: True

    • Correct Answer: True

  5. tRNA and Transcription

    • Statement: tRNA is required for transcription.

    • Selected Answer: False

    • Correct Answer: False

  6. Epigenetic Modification

    • Question: Which of the following is an example of an epigenetic modification?

    • Selected Answer: Methylation of DNA that silences a specific gene.

    • Correct Answers: Other options clarified.

  7. Metaphase Stage of Mitosis

    • Question: What happens during metaphase?

    • Selected Answer: Chromosomes align in the middle of the cell.

    • Correct Answer: Chromosomes align in the middle of the cell.

  8. Frameshift Mutation Example

    • Question: Which sentence variation is most like a frameshift mutation?

    • Selected Answer: The dod idn ote at.

  9. Lac Operon in Presence of Lactose

    • Question: What happens to the lac operon?

    • Selected Answer: The operon is turned on, and genes for lactose metabolism are transcribed.

    • Correct Answer: Same as selected.

  10. MicroRNAs (miRNAs) Binding

    • Question: Where do miRNAs typically bind?

    • Selected Answer: To messenger RNA (mRNA) molecules.

  11. Transcription Factors

    • Selected Answer: Attach to DNA.

  12. Ribosome Composition

    • Selected Answer: Ribosomes are composed of RNA and protein.

  13. DNA Double Helix Structure

    • Selected Answer: Hydrogen bonds hold the strands together.

  14. Zygote Chromosome Number

    • Selected Answer: A diploid chromosome number - one from each parent.

  15. Role of Transcription Factors

    • Selected Answer: To regulate the initiation of transcription by binding to specific DNA sequences.

  16. RNA Production Enzyme

    • Selected Answer: RNA polymerase.

  17. Eukaryotic DNA Replication Direction

    • Selected Answer: 5’ -> 3’ direction.

  18. Genetic Code Units

    • Selected Answer: Three-nucleotide sequences.

  19. DNA Replication Outcome

    • Selected Answer: Two DNA molecules, each with one new strand and one original strand.

  20. Central Dogma of Molecular Biology

    • Selected Answer: DNA -> RNA -> Protein.

  21. Function of RNA Polymerase

    • Selected Answer: To transcribe DNA into RNA.

  22. Function of siRNAs

    • Selected Answer: To turn off gene expression.

  23. Regulatory RNA Types

    • Selected Answer: MicroRNA.

  24. Codons for Amino Acids

    • Selected Answer: 6 codons needed for 6 amino acids.

  25. Responsible for Mutant Fruit Fly Appearance

    • Selected Answer: A mutation in a hox gene.

  26. Lac Operon Function

    • Selected Answer: Prevents lactose-utilizing enzymes from being expressed when lactose is present.

  27. Meiosis Occurrence

    • Selected Answer: False (Meiosis occurs in germ cells only).

  28. RNAi Mechanism

    • Selected Answer: False (RNAi functions in many organisms, not just plants).

  29. Hox Genes Similarity

    • Selected Answer: False (Hox genes are similar across species).

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