Biotechnological Applications In Agriculture Test

Biotechnological Applications In Agriculture

This is online test 02 for CBSE class 12 Biology Biotechnology and its Applications (Biotechnological Applications in Agriculture).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
Host plant generated dsRNA triggers protection against
  • A
    Rhizobium infestation
  • B
    Bacterial infestation
  • C
    Nematode infestation
    Correct
  • D
    Nostoc infestation
2
Bt is short form of
  • A
    Bacillus thuringiensis
    Correct
  • B
    Bacterium tetracycline
  • C
    Bacillus tetracycline
  • D
    Bacterium thuringiensis
3
Gene for antisense polygalactouronase will lead to
  • A
    Drought resistance
  • B
    Pest resistance
  • C
    Delayed ripening
    Correct
  • D
    Herbicide resistance
4
Seeds of golden rice are yellow in colour because
  • A
    It has vitamin B encoding gene
  • B
    It has vitamin E encoding gene
  • C
    It is a biproduct of 3 genes
  • D
    Provitamin A is produced in the entire grain
    Correct
5
RNAi helps in producing pest resistant plants as there is the formation of
  • A
    dsDNA
  • B
    ssRNA
  • C
    ssDNA
  • D
    dsRNA
    Correct
6
Flavr Savr tomato is produced
  • A
    for herbicide tolerance
  • B
    for pest resistance
  • C
    for frost resistance
  • D
    to enhance self-life of fruits
    Correct
7
GM Arabidopsis produces dsRNA to
  • A
    To produce more protein product
  • B
    Knock out specific parasitic genes in the nematode
    Correct
  • C
    To make DNA non functional
  • D
    To stop transcription
8
Cry genes introduced in a plant will not be affective against
  • A
    hymenoptera
  • B
    rodents
    Correct
  • C
    coleoptera
  • D
    lepidoptera
9
The cry1Ac gene in Bt Brinjal is under the transcriptional control of an enhanced cauliflower mosaic virus 35S (CaMV35S) promoter, which ensures
  • A
    its concentration
  • B
    its specificity
  • C
    the gene is expressed in all the Brinjal tissue throughout its complete life-cycle
    Correct
  • D
    control of the terminator
10
Agrobacterium naturally inserts DNA into plants by
  • A
    Antibiotic resistant genes
  • B
    DNA
  • C
    Its Ti plasmid
    Correct
  • D
    Marker gene