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The most likely reason for the development of resistance against pesticides in insect damaging a crop is:

  1. Random mutations
  2. Genetic recombination
  3. Directed mutations
  4. Acquired heritable changes
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this a recombinant DNA is inserted within the codingled tare an enzype, gene for synthesis of this endyme, which is relerred to as insertichend inaetivation. The presence of a chromogenic substrate gliven these are Identified as recombinant colonies. (iv) Vectors for cloning genes in plants and animals : You mati, surprised to know that we have learnt the lesson of transieming if into plants and animals from bacteria and viruses whict have ken of force them to do what the bacteria or viruses want. For exament plant cells into a tumor and direet these tumor cells to produen chemicals required by the pathogen. Similarly, retroviruses in anime better understanding of the art of delivering genes by pathogens in fithat nuclelc to humans. The tumor inducing (Ti) plasmid of Agrabacierte to hifactens has now been modified into a cloning vector whichis more pathogenic to the plants but is still able to use the mechanisher to deliver genes of our interest into a variety of plants. Similar plant or animal host (where it muliplies). 11.2.3 Competent Host (For Transformation with Recombinant DNA) Since DNA is a hydrophilic molecule, it cannot pass through col membranes. Why? In order to force bacteria to take up the plasmid. the bacterial cells must first be made 'competent' to take up DNA. This done by treating them with a specific concentration of a divalenteation de chilled eth such as calcium, which increases the efficiency with which DNA entef fujension
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Question Text
The most likely reason for the development of resistance against pesticides in insect damaging a crop is:

TopicBiotechnology
SubjectBiology
ClassClass 12