26. A DNA library constitutes

1. 1. All the genes in a gene pool

   
   
   

   2. All the genes sequenced so far

   
   
   

   3. A collection of all the DNA fragments of an organism inserted in plasmid

   
   
   

   4. A DNA fragment inserted in a phage.

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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27. Plasmid are

1. 1. Cytoplasmic organelles which store starch

   
   
   

   2. Extra chromosomal DNA elements in bacteria

   
   
   

   3. Genes which cause cancer

   
   
   

   4. BasiC proteins around which DNA is coiled in encaryotic chromosome

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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28. Which of the following vitamin is transformed in golden rice ?

1. 1. Vitamin A

   
   
   

   2. Vitamin B₁₂

   
   
   

   3. Vitamin C

   
   
   

   4. Vitamin D

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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29. A method used to distinguish DNA of one invidual from another is

1. 1. DNA sequencing

   
   
   

   2. eDNA

   
   
   

   3. Hybridisation

   
   
   

   4. Restriction fragment length polymorphism

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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30. Which is used extensively for genetic engineering in plant ?

1. 1. Agrobacterium tumefaciens

   
   
   

   2. Xanthomonas citri

   
   
   

   3. Bacillus coagulens

   
   
   

   4. Clostridium specticum

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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