Bacterial DNA Structure and Composition

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Questions and Answers

What is the orientation of the two DNA strands in relation to each other?

  • Perpendicular
  • Antiparallel (correct)
  • Orthogonal
  • Parallel

What bases are hydrogen bonded in DNA, creating complementary base pairs?

  • Adenine and Cytosine
  • Guanidine and Cytosine
  • Adenine and Thymine (correct)
  • Guanine and Thymine

What is the unit commonly used to express the length of a DNA molecule?

  • Joules (J)
  • Megabytes (MB)
  • Centimeters (cm)
  • Kilobase pairs (kbp) (correct)

What part of the DNA molecule determines its genetic information?

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

How far apart are adjacent base pairs in a DNA molecule?

<p>$0.34$ nm (A)</p> Signup and view all the answers

What is the function of RNA molecules?

<p>To communicate DNA gene sequences (C)</p> Signup and view all the answers

Which base in DNA is replaced by uracil in RNA?

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

What is the primary function of mRNA in a cell?

<p>Transporting genetic information from DNA to ribosomes (C)</p> Signup and view all the answers

Which type of RNA is primarily involved in catalyzing the formation of the peptide bond during protein synthesis?

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

What accounts for over 95% of the total RNA in a bacterial cell?

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

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