Central Dogma of Molecular Biology: DNA, RNA & Proteins
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Questions and Answers

What is the main function of DNA in cells?

  • To regulate gene expression
  • To catalyze chemical reactions
  • To store genetic information (correct)
  • To produce proteins

Which of the following is NOT a component of a DNA nucleotide?

  • Nitrogenous base
  • Ribose sugar (correct)
  • Phosphate
  • Deoxyribose sugar

What type of bond connects the nucleotides in a DNA strand?

  • Hydrogen bond
  • Ionic bond
  • Covalent bond
  • Phosphodiester bond (correct)

During DNA replication, what is the function of DNA Helicase?

<p>Relaxes the coiled DNA strands (A)</p> Signup and view all the answers

What is the role of RNA Primase in DNA replication?

<p>Provides the initiation sequence for DNA polymerase (B)</p> Signup and view all the answers

During DNA replication, which enzyme fills the gaps and joins the fragments in the lagging strand?

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

What is the main function of RNA polymerase during transcription?

<p>Synthesizing mRNA from a DNA template (A)</p> Signup and view all the answers

What is the role of the Spliceosome in mRNA processing?

<p>Joining adjacent exons to form mature mRNA (B)</p> Signup and view all the answers

Where does translation occur in eukaryotic cells?

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

What is the function of tRNA during translation?

<p>Bringing amino acids to the ribosome (C)</p> Signup and view all the answers

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