Central Dogma of Molecular Biology
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Questions and Answers

According to the central dogma of molecular biology, what is the flow of genetic information?

  • RNA makes DNA, and DNA makes protein
  • Protein makes DNA, and DNA makes RNA
  • DNA makes RNA, and RNA makes protein (correct)
  • Protein makes RNA, and RNA makes DNA

    • What does Francis Crick's version of the central dogma state about the transfer of information from protein to protein?

  • It is impossible (correct)
  • It is not addressed in his version
  • It is only possible under certain conditions
  • It is possible

    • How does Watson's version of the central dogma differ from Crick's version?

  • Watson emphasizes the transfer of information from protein to nucleic acid, while Crick emphasizes the transfer of information from nucleic acid to protein
  • Watson describes a one-step process while Crick describes a two-step process
  • Watson describes a two-step process (DNA → RNA and RNA → protein) while Crick describes a one-step process (correct)
  • There is no difference between Watson's and Crick's version

    • What does the central dogma of molecular biology deal with, according to Francis Crick?

    <p>The detailed residue-by-residue transfer of sequential information</p> Signup and view all the answers

    In what year did Francis Crick first state the central dogma of molecular biology?

    <p>1957</p> Signup and view all the answers

    What is the popular but incorrect version of the central dogma, as described in the text?

    <p>DNA → RNA → protein pathway</p> Signup and view all the answers

    What are the 3 major classes of biopolymers involved in the transfer of sequence information according to the central dogma?

    <p>DNA, RNA, and protein</p> Signup and view all the answers

    How many conceivable direct transfers of information are there between the 3 major classes of biopolymers?

    <p>9</p> Signup and view all the answers

    Which of the following is considered a special transfer of biological information according to the central dogma?

    <p>RNA being copied from RNA (RNA replication)</p> Signup and view all the answers

    What is the ideal nature of the transfers of information described by the central dogma?

    <p>Faithful and deterministic transfers</p> Signup and view all the answers

    What are the DNA codes transferred to RNA codes during transcription?

    <p>A, G, T, and C to U, C, A, and G, respectively</p> Signup and view all the answers

    Which class of biopolymer is used as a template for the synthesis of proteins?

    <p>mRNA</p> Signup and view all the answers

    In what groups are proteins encoded during the process of encoding proteins?

    <p>Groups of three known as codons</p> Signup and view all the answers

    Which transfers describe normal flows of biological information?

    <p>(1) DNA can be copied to DNA (DNA replication), (2) DNA information can be copied into mRNA (transcription), and (3) proteins can be synthesized using the information in mRNA as a template (translation)</p> Signup and view all the answers

    What are the linear polymers that comprise DNA, RNA and (poly)peptides?

    <p>Linear polymers connected to at most two other monomers</p> Signup and view all the answers

    Which lifeforms use different translations from the standard codon table used for humans and mammals?

    <p>Some other lifeforms including human mitochondria</p> Signup and view all the answers

    According to the central dogma of molecular biology, what is the flow of genetic information?

    <p>DNA makes RNA, and RNA makes protein</p> Signup and view all the answers

    What does Francis Crick's version of the central dogma state about the transfer of information from protein to protein?

    <p>It is impossible to transfer information from protein to protein</p> Signup and view all the answers

    How does Watson's version of the central dogma differ from Crick's version?

    <p>Watson describes a two-step process (DNA → RNA and RNA → protein) as the central dogma</p> Signup and view all the answers

    Which of the following is considered a special transfer of biological information according to the central dogma?

    <p>Transfer from RNA to DNA</p> Signup and view all the answers

    What is the popular but incorrect version of the central dogma, as described in the text?

    <p>Protein → DNA → RNA → protein</p> Signup and view all the answers

    In what year did Francis Crick first state the central dogma of molecular biology?

    <p>1957</p> Signup and view all the answers

    Which of the following is a major class of biopolymer involved in the transfer of sequence information according to the central dogma?

    <p>DNA and RNA</p> Signup and view all the answers

    What describes the normal flow of biological information according to the central dogma?

    <p>DNA can be copied to DNA (DNA replication)</p> Signup and view all the answers

    Which of the following is NOT thought to naturally occur according to the central dogma?

    <p>DNA being synthesized using an RNA template</p> Signup and view all the answers

    What is the ideal nature of the transfers of information described by the central dogma?

    <p>Faithful and deterministic</p> Signup and view all the answers

    Which lifeforms use different translations from the standard codon table used for humans and mammals?

    <p>Some other lifeforms including human mitochondria use different translations</p> Signup and view all the answers

    What are the 3 major classes of biopolymers involved in the transfer of sequence information according to the central dogma?

    <p>(Poly)peptides, nucleic acids, and lipids</p> Signup and view all the answers

    What is a group of three that encodes proteins during the process of protein synthesis?

    <p><strong>Codons</strong></p> Signup and view all the answers

    Which of the following represents a special transfer of biological information according to the central dogma?

    <p><strong>RNA being copied from RNA (RNA replication)</strong></p> Signup and view all the answers

    What is the ideal nature of the transfers of information described by the central dogma?

    <p>Faithful and deterministic</p> Signup and view all the answers

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