Sail E0 Webinar

MCQs

Total Questions : 74 | Page 4 of 8 pages
Question 31. Cultivated tomato species (Lycopersicon esculentum) has a high degree of resistance towards
  1.    Solarium melongena
  2.    both (a) and (b)
  3.    L. peruviaanum
  4.    Meloidogyne spp.nematodes
 Discuss Question
Answer: Option C. -> L. peruviaanum
Question 32. When the transposon jumps into an otherwise functional gene, it has the effect of
  1.    initiating correct transcription
  2.    initiating some genetic codes
  3.    blocking correct transcription
  4.    propagating correct transcription
 Discuss Question
Answer: Option C. -> blocking correct transcription
Question 33. CDNA clone prepared to stigma mRNA of Brassica oleracea can be used as a probe on DNA digests of segregating populations to recognize
  1.    Both (a) and (b)
  2.    Triticum
  3.    S alleles
  4.    Aegilops
 Discuss Question
Answer: Option C. -> S alleles
Question 34. Which of the following constituent/(s) is/are added to help in speedy generation of meristem culture in case of Ipomoea batatas improvement?
  1.    Both (a) and (b)
  2.    Auxins
  3.    Adenine
  4.    Cytokinins
 Discuss Question
Answer: Option A. -> Both (a) and (b)
Question 35.  Which of the following has been confirmed on sugarcane genotypes?
  1.    Bacilliform virus
  2.    Cytomegalovirus
  3.    Varicella-zoster virus
  4.    Erythrovirus
 Discuss Question
Answer: Option A. -> Bacilliform virus
Question 36.  
Involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be
  1.    3-deoxyanthocyanidin
  2.    luteolinidin
  3.    apigeninidin
  4.    5-0 apigeninidin
 Discuss Question
Answer: Option A. -> 3-deoxyanthocyanidin
Question 37.  Human serum albumin has been synthesized by
  1.    transgenic potato and tobacco plants
  2.    transgenic maize plants
  3.    transgenic wheat plants
  4.    any of the above
 Discuss Question
Answer: Option A. -> transgenic potato and tobacco plants
Question 38.  Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of
  1.    Streptomyces avermitilis
  2.    B. thrunigiensis
  3.    P. flourescens
  4.    L. peruvianum
 Discuss Question
Answer: Option A. -> Streptomyces avermitilis
Question 39.  Which of the following have been used for cryo-preservation of germplasm with 90% tissue survival and 10%plant regeneration that are used in international exchange of germplasm?
  1.    Meristem tip cultures
  2.    Embryo cultures
  3.    Both (a) and (b)
  4.    Embryo cultures supplemented with GA3 and coconut milk
 Discuss Question
Answer: Option A. -> Meristem tip cultures
Question 40.  The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the
  1.    T-DNA
  2.    c-DNA
  3.    r-DNA
  4.    m-RNA
 Discuss Question
Answer: Option A. -> T-DNA

Latest Videos

Latest Test Papers