Meenal Meshram posted an Question
January 29, 2022 • 00:40 am 30 points
  • IIT JAM
  • Biotechnology (BT)

Properties of cells

What is the meaning of statement "The machinery used for synthesis is interchangeable. However, for this to function properly, information transfer must be mutation free."

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    Krishan k jakhad best-answer

    A mutation is a change in the nucleotide sequence of a short region of a genome. Many mutations are point mutations that replace one nucleotide with another; others involve insertion or deletion of one or a few nucleotides. Mutations result either from errors in DNA replication or from the damaging effects of mutagens, such as chemicals and radiation, which react with DNA and change the structures of individual nucleotides. if a mutation is there it may be dangerous for the survival of organism. so All cells possess DNA-repair enzymes that attempt to minimize the number of mutations that occur. These enzymes work in two ways. Some are pre-replicative and search the DNA for nucleotides with unusual structures, these being replaced before replication occurs; others are post-replicative and check newly synthesized DNA for errors, correcting any errors that they find. so all information transferred from one generation to next should be error free and it should be comforted cells before division. okay...hope this help.

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    oh got it , For Activation of Enzyme Activity cell Uses Different machinery, That's Why The machinery used for synthesis is Interchangeable right?

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    yes u got it Right...all the best 👍

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    Anamitra Sen

    Maybe the machinery of the cell is changeable, it will be better , if you give the paragraph of the text. Thank you

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    paragraph

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    ok I think it is saying about the triplet codon or the 3 amino acids which can change by interchange

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    ok thanks sir

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