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MCQs

Total Questions : 222 | Page 2 of 23 pages
Question 11. Random amplified polymorphic DNA (RAPD) is a method that
  1.    stimulate production of sense RNA to compensate
  2.    activate the expression of all genes in a biochemical pathway
  3.    eliminate the expression of all genes in a biochemical pathway
  4.    reveals intra-specific variation and diversity between species
 Discuss Question
Answer: Option D. -> reveals intra-specific variation and diversity between species
Answer: (d).reveals intra-specific variation and diversity between species
Question 12. Which of the following transfers a set of genes encoded in a region called T-DNA of the Ti-plasmid into cells at wound positions?
  1.    A. tumefaciens
  2.    L. peruvianum
  3.    L. birsutum
  4.    A. sterilis
 Discuss Question
Answer: Option A. -> A. tumefaciens
Answer: (a).A. tumefaciens
Question 13. A plasmid used to introduce BT toxin into a plant cell
  1.    carries an antibiotic resistance gene that makes the plant resistant to antibiotics
  2.    causes the plant to produce opines
  3.    is toxic for the plant cell
  4.    carries a bacterial gene with a plant promoter
 Discuss Question
Answer: Option D. -> carries a bacterial gene with a plant promoter
Answer: (d).carries a bacterial gene with a plant promoter
Question 14. During meiosis crossing over takes place at
  1.    zygotene stage
  2.    diplotene stage
  3.    diakinesis stage
  4.    pachytene stage
 Discuss Question
Answer: Option D. -> pachytene stage
Answer: (d).pachytene stage
Question 15. Which of the following transposable elements are not found in plants?
  1.    Ac
  2.    Tam3
  3.    L1
  4.    All are found
 Discuss Question
Answer: Option C. -> L1
Answer: (c).L1
Question 16. The homologous chromosomes follow the process of synopsis in the
  1.    leptotene
  2.    zygotene
  3.    pachytene
  4.    diplotene
 Discuss Question
Answer: Option B. -> zygotene
Answer: (b).zygotene
Question 17. In case of incomplete dominance, the phenotypic ratio of a monohybrid cross will be
  1.    1:2:1
  2.    3:1:1
  3.    1:3:1
  4.    1:1:2
 Discuss Question
Answer: Option A. -> 1:2:1
Answer: (a).1:2:1
Question 18. When F1 plants are crossed with homozygous recessive plants, it is known as
  1.    test cross
  2.    recessive cross
  3.    criss-cross
  4.    para-cross
 Discuss Question
Answer: Option A. -> test cross
Answer: (a).test cross
Question 19. In the meiotic cell divison in daughter cells are produced by two successive division in which
  1.    first division is equational, second is reductional
  2.    first division is reductional and second is equational
  3.    both divisions are reductional
  4.    both divisions are equational
 Discuss Question
Answer: Option A. -> first division is equational, second is reductional
Answer: (a).first division is equational, second is reductional
Question 20. The shortest of mitotic phases is the
  1.    telophase
  2.    interphase
  3.    metaphase
  4.    anaphase
 Discuss Question
Answer: Option D. -> anaphase
Answer: (d).anaphase

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