DNA Structure and Function Quiz

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Questions and Answers

Which of the following is a major functional form of RNA?

  • lncRNA
  • mRNA (correct)
  • piRNA
  • snRNA

Which region of mRNA is translated into protein?

  • untranslated region (correct)
  • 5' end
  • poly-A tail
  • 3' end

Which type of RNA matches amino acid with codon?

  • tRNA (correct)
  • miRNA
  • rRNA
  • snRNA

Which type of RNA is a structural and functional component of ribosomes?

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

Which type of RNA carries protein coding sequence?

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

Which type of RNA is involved in splicing and mRNA degradation?

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

Which type of RNA is associated with epigenetic modification and genomic imprinting?

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

Which type of RNA is involved in X-chromosome inactivation and telomere protection?

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

Which compound would be a drug of choice for a patient with low CD4 lymphocyte count and symptoms of infection?

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

Which compound is commonly used in cancer treatment?

<p>5-Flurouracil (A)</p> Signup and view all the answers

Which experiment in 1944 showed that DNA is the genetic material that causes transformation?

<p>Avery et al. (C)</p> Signup and view all the answers

Who generated the X-ray picture of DNA fiber in 1950?

<p>Maurice Willkins and Rosalind Franklin (A)</p> Signup and view all the answers

What did Jim Watson and Francis Crick solve in 1953?

<p>The structure of DNA (D)</p> Signup and view all the answers

What are the handrails of the DNA double helix made of?

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

What is the direction of DNA strands?

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

What is the most common form of DNA double helix?

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

What is the process of separating DNA strands by breaking hydrogen bonds called?

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

What determines the denaturation temperature of DNA?

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

What type of DNA structure could be formed in GC-rich regions?

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

What is the property of RNA that distinguishes it from DNA?

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

Which textbook is suggested for studying DNA structure and function?

<p>Molecular Biology of the Cell (B)</p> Signup and view all the answers

What is the major biopolymer that is composed of deoxyribonucleotides?

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

What is the difference between nucleosides and nucleotides?

<p>Nucleosides have base and sugar, while nucleotides have base, sugar, and phosphate. (A)</p> Signup and view all the answers

Which of the following is a purine base?

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

Which chemical bond connects bases to the sugar in DNA?

<p>N-glycosidic bond (B)</p> Signup and view all the answers

Where are new bases added during DNA replication?

<p>3' carbon of sugar (C)</p> Signup and view all the answers

What is the term used to describe the structure of DNA with two antiparallel strands and complementary base pairing?

<p>Double helix DNA (B)</p> Signup and view all the answers

What are the building blocks of DNA called?

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

Which experiment provided evidence that DNA is the genetic material?

<p>Avery-MacLeod-McCarty Experiment (C)</p> Signup and view all the answers

What is the difference between chromatin and chromatid?

<p>Chromatin is the relaxed form of DNA during cell division, while chromatid is the condensed form. (B)</p> Signup and view all the answers

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