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

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

<p>1957 (C)</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 (D)</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 (B)</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 (D)</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) (A)</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 (C)</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 (A)</p> Signup and view all the answers

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

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

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

<p>1957 (B)</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 (B)</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) (B)</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 (B)</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 (B)</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 (A)</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 (B)</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> (A)</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> (C)</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 (D)</p> Signup and view all the answers

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