DNA, RNA and Protein Synthesis Basics Quiz

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Questions and Answers

Which type of RNA transfers amino acids to the ribosomes where proteins are synthesized?

  • DNA Polymerase
  • Transfer RNA (tRNA) (correct)
  • Ribosomal RNA (rRNA)
  • Messenger RNA (mRNA)

What is the function of ribosomal RNA (rRNA)?

  • Associates with proteins to form ribosomes and is the site of protein synthesis (correct)
  • Copies DNA's code and carries genetic information to the ribosomes
  • Makes up a long straight chain of nucleotides
  • Transfers amino acids to the ribosomes

Which part of a transfer RNA (tRNA) molecule has an attachment site for an amino acid?

  • Clover-leaf shape
  • Opposite end with an attachment site for an amino acid (correct)
  • The center region with a sequence of 3 bases called codon
  • Opposite end with three nucleotide bases called anticodon

What is the function of messenger RNA (mRNA)?

<p>Copies DNA's code and carries genetic information to the ribosomes (D)</p> Signup and view all the answers

What happens during DNA replication?

<p>Unwinding and separating of DNA strands followed by making new ones with appropriate nucleotides (A)</p> Signup and view all the answers

Which molecule is formed by millions of nucleotides joined together in a long chain?

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

What is the correct order of the components of a nucleotide in DNA?

<ol> <li>Phosphate group, 2) Nitrogenous base, 3) Pentose sugar (B)</li> </ol> Signup and view all the answers

What type of bond is present between guanine and cytosine in DNA?

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

What is the function of Messenger RNA (mRNA)?

<p>Directs protein synthesis (C)</p> Signup and view all the answers

What are the main classes of RNA molecule present in prokaryotic and eukaryotic organisms?

<p>Ribosomal RNA (rRNA), Messenger RNA (mRNA), Transfer RNA (tRNA) (B)</p> Signup and view all the answers

What is the function of transfer RNA (tRNA) in protein synthesis?

<p>Transfers amino acids to the ribosomes where proteins are synthesized (C)</p> Signup and view all the answers

What is the role of ribosomal RNA (rRNA) in protein synthesis?

<p>Forms ribosomes along with protein and is the site of protein synthesis (A)</p> Signup and view all the answers

Which molecule carries the information for a specific protein?

<p>Messenger RNA (mRNA) (A)</p> Signup and view all the answers

What is the sequence of 3 bases called in messenger RNA (mRNA)?

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

What is the shape of transfer RNA (tRNA)?

<p>Single strand with globular shape (A)</p> Signup and view all the answers

What is the correct order of the components of a nucleotide in DNA?

<p>Nitrogenous base, Pentose sugar, Phosphate group (D)</p> Signup and view all the answers

What happens during DNA replication?

<p>Duplication of DNA to produce two identical copies (A)</p> Signup and view all the answers

Which type of RNA transfers amino acids to the ribosomes where proteins are synthesized?

<p>Transfer RNA (tRNA) (B)</p> Signup and view all the answers

What is the function of ribosomal RNA (rRNA)?

<p>Catalyzing the formation of peptide bonds (B)</p> Signup and view all the answers

What type of bond is present between guanine and cytosine in DNA?

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

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