Home
Class 12
BIOLOGY
(a) Name the scientist who called t-RNA ...

(a) Name the scientist who called t-RNA an adapter molecule.
(b) Draw a clover leaf structure of t-RNA showing the following:
(i) tyrosine attached to its amino acid site
(ii) anticodon for this amino acid in its correct site (codon for tyrosine Is UAC)
(c) What does the actual structure of t-RNA look like?

Text Solution

Verified by Experts

(a) Francis Crick
(b)
(c )In actual structure, the tRNA is a compact molecule which looks like inverted L
Promotional Banner

Topper's Solved these Questions

  • GENETICS AND EVOLUTION

    TRUEMAN BIOLOGY|Exercise SECTION-D|25 Videos

  • GENETICS AND EVOLUTION

    TRUEMAN BIOLOGY|Exercise SECTION-B|38 Videos

  • Genetics

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|122 Videos

  • HUMAN HEALTH AND DISEASE

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|211 Videos

Similar Questions

Explore conceptually related problems

Consider the following processes 1. Synthesis of t-RNA 2. Attachment of an amino acid to ATP. 3. Acetylation of amino acid attached to t-RNA. 4. Charging of t-RNA Which of the above is/are the functions of aminoacylt-RNA synthetase?

(a) Write Haworth structure of "Lactose". (b) i) What are non-essential amino acids? ii) Write Zwitter ionic structure of "glycine". (c) Name the nitrogenous base present in RNA but not in DNA.

(a) Write the Haworth's structure for lactose. (b) Give an example for the following: (i) Naturally occurring optically inactive a-amino acid. (i) Nitrogen base only found in R.N.A. (c ) Name the disease caused by the deficiency of vitamin A.

After the addition of the last amino acid to a growing polypeptide chain during the process of protein synthesis, one of the termination codons reaches the appropriate site on the ribosomal surface and then the following envents take place (i) Release of t-RNA molecule from the ribosome. (ii) Dislodging of polypeptide chain from the t-RNA (iii) Dissociation of ribosomes into large and small subunits. ltBrgt The correct sequence of these events:

b) i) Pentaacetate of glucose does not react with hydroxyl amine. What does this indicate about the structure of glucose. ii) Which is the most abundant polysaccharide in plants? iii) Name the natural a-amino acid that is not optically active.

(i) A local magician was showing magic in a village street. He took egg shell and poured a solution over it. As a result, effervescences were formed. When he took a burning matchstick over it, it went off. (a) Identify the solution poured and the substance present in eff shell. (b) What is the reason behind effervescences? ( c) Write its balanced chemical equation. (d) Give the common name of the substance present in the egg shell. (ii) Draw a labelled diagram to show that acid solution in water conducts electricity.

The electrolyte solutions show abnormal colligative porperties.To account for this effect we define a quantity called the Van't Hoff factor given by i=("Actual number of particles in solution after dissociation")/("Number of formula units initially dissolved in solution") i=1 ("for non-electrolytes") igt1 ("for electrolytes, undergoing dissociation") ilt1 ("for solutes, undergoing association") Answer the following questions: A solution of benzoic acid is dissolved in benzene such that it undergoes molecular association and its molar mass apporaches 244 . The benzoic molecules will exist as

TRUEMAN BIOLOGY-GENETICS AND EVOLUTION -SECTION-C
  1. (i) Name the enzyme that catalysis the transcription of hnRNA. (ii) Wh...

    Text Solution

    |

  2. Unambiguous, universal and degenerate are some of the terms used for t...

    Text Solution

    |

  3. (a) Name the scientist who called t-RNA an adapter molecule. (b) D...

    Text Solution

    |

  4. During the studies on genes in Drosopila that were sex-linked T.H. Mor...

    Text Solution

    |

  5. Explain the mechanism of sex determination in insects like Drosophila ...

    Text Solution

    |

  6. Who determines the sex of an unborn child? Mention whether temperature...

    Text Solution

    |

  7. The following is the flow chart highlighting the steps in DNA finger p...

    Text Solution

    |

  8. Study the given pedigree chart showing the pattern of blood group inhe...

    Text Solution

    |

  9. a) Construct a complete transcription unit with promoter and terminato...

    Text Solution

    |

  10. What is the genetic basis for proof that codon is a triplet?

    Text Solution

    |

  11. What is satellite DNA in a genome ? Explain their role in DNA fingerpr...

    Text Solution

    |

  12. Describe the structure of an RNA polynucleotide chain having four diff...

    Text Solution

    |

  13. Explain the pattern of inheritance of haemophilia in humans. Why is th...

    Text Solution

    |

  14. In a maternity clinic, for some reasons the authorities are not able t...

    Text Solution

    |

  15. a) Explain DNA polymorphism as the basis of genetic mapping of human g...

    Text Solution

    |

  16. Explain codominance taking an example of human blood groups in the pop...

    Text Solution

    |

  17. Define natural selection. Mention its types.

    Text Solution

    |

  18. "A population has been exhibiting genetic equilibrium". Answer the fo...

    Text Solution

    |

  19. In the 1950s, there were hardly any mosquitoes Delhi. The use of the p...

    Text Solution

    |

  20. Discovery of Lobefins is considered very significant by evolutionary b...

    Text Solution

    |