Gene Expression Mechanisms Quiz
15 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the fundamental dogma that explains the link between DNA and proteins?

  • DNA is replicated to produce RNA, which is then translated to produce Proteins
  • DNA is transcribed to produce RNA, which is then translated to produce Proteins (correct)
  • Proteins are transcribed to produce DNA, which is then translated to produce RNA
  • RNA is transcribed to produce DNA, which is then translated to produce Proteins

    • What is the main difference between a gene and a genome?

  • A gene consists of non-encoding DNA sequences only, while a genome consists of gene encoding DNA sequences.
  • A gene consists of DNA sequences only, while a genome consists of gene encoding DNA sequences & non-encoding DNA sequences. (correct)
  • A gene consists of proteins only, while a genome consists of gene encoding DNA sequences.
  • A gene consists of RNA sequences only, while a genome consists of protein encoding DNA sequences.

    • Which component makes up the sugar-phosphate backbone in the structure of DNA?

  • Base + Hydrogen Bond
  • Sugar + Phosphate + Base (correct)
  • Phosphate + Base
  • Sugar + Base

    • What is the process by which information from a gene is used in the synthesis of a functional gene product?

    <p>Gene Expression</p> Signup and view all the answers

    What is the role of release factors during translation termination?

    <p>Recognizing stop codons</p> Signup and view all the answers

    What occurs once the peptide bond is formed?

    <p>The empty tRNA drifts out via the E site</p> Signup and view all the answers

    What is the function of polyribosomes in protein synthesis?

    <p>Linking ribosomes together for protein synthesis</p> Signup and view all the answers

    During transcription, which phase involves RNA polymerase adding one RNA nucleotide at a time to a growing RNA molecule?

    <p>Elongation</p> Signup and view all the answers

    What is the function of the terminator sequence in transcription?

    <p>Signals where the RNA polymerase should stop transcribing</p> Signup and view all the answers

    What is the purpose of splicing in RNA processing?

    <p>Removing introns and joining exons</p> Signup and view all the answers

    Which structure is responsible for carrying the next amino acid to be added to a growing polypeptide chain during translation?

    <p>tRNA</p> Signup and view all the answers

    In translation, what is the role of the A site on the ribosome?

    <p>Hold tRNA carrying next amino acid</p> Signup and view all the answers

    Which component of translational machinery is responsible for adding specific amino acids to tRNA molecules?

    <p>Aminoacyl-tRNA synthetases</p> Signup and view all the answers

    In which direction does RNA polymerase move along the DNA template strand during transcription elongation?

    <p>3' to 5'</p> Signup and view all the answers

    True or False: The non-template DNA strand has the same sequence as the mRNA, except for the T-U switch.

    <p><strong>False</strong></p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser