Human Anatomy and Physiology Chapter 4: DNA and Cellular Level

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Questions and Answers

What is the primary function of a ribosome in protein synthesis?

  • To regulate the activation of genes for protein synthesis
  • To replicate DNA prior to cell division
  • To transcribe DNA into mRNA
  • To translate mRNA into a protein sequence (correct)

What is the term for the sequence of three nucleotides on mRNA that corresponds to a specific amino acid?

  • Codon (correct)
  • Anticodon
  • Gene
  • Exome

What is the role of tRNA in protein synthesis?

  • To synthesize amino acids
  • To regulate the expression of genes
  • To carry mRNA out of the nucleus
  • To carry amino acids to the ribosome during translation (correct)

What is the consequence of misfolded proteins in the cell?

<p>They are either refolded or destroyed by proteasomes (C)</p> Signup and view all the answers

What is the term for the process of copying DNA genetic information onto a molecule of RNA?

<p>Transcription (C)</p> Signup and view all the answers

What is the sequence of events in protein synthesis?

<p>Transcription, translation, and then folding (B)</p> Signup and view all the answers

What is the function of the genetic code?

<p>To specify the order of amino acids in a protein (C)</p> Signup and view all the answers

What is the term for the complete set of genetic instructions for an organism?

<p>Genome (C)</p> Signup and view all the answers

How do the nucleotides of one DNA strand interact with those in the other strand?

<p>Through weak hydrogen bonds (D)</p> Signup and view all the answers

What is the term for the process of protein synthesis on the ribosomes?

<p>Translation (B)</p> Signup and view all the answers

What is the primary function of the ribosome in protein synthesis?

<p>To translate messenger RNA into a specific sequence of amino acids (D)</p> Signup and view all the answers

What is the term for the sequence of three nucleotides that codes for a specific amino acid in the genetic code?

<p>Codon (D)</p> Signup and view all the answers

What is the process by which the sequence of amino acids in a protein determines its 3D structure?

<p>Protein folding (A)</p> Signup and view all the answers

What is the relationship between the genetic code and the sequence of amino acids in a protein?

<p>Degenerate (A)</p> Signup and view all the answers

What is the role of the start codon in protein synthesis?

<p>To initiate translation (B)</p> Signup and view all the answers

What is the term for the sequence of amino acids that make up a protein?

<p>Primary structure (D)</p> Signup and view all the answers

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DNA and protein synthesis.pptx

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