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MCQs

Total Questions : 232 | Page 22 of 24 pages
Question 211. Expression of prokaryotic operons leads to the generation of
  1.    polycistronic mRNA
  2.    monocistronic mRNA
  3.    polycistronic tRNA
  4.    monocistronic tRNA
 Discuss Question
Answer: Option A. -> polycistronic mRNA
Answer: (a).polycistronic mRNA
Question 212. Functional unit of genomic DNA containing a cluster of genes under control of single promoter is termed as
  1.    operon
  2.    chromatin
  3.    polymer
  4.    telomere
 Discuss Question
Answer: Option A. -> operon
Answer: (a).operon
Question 213. The process through which organism can survive and transmit the selected genes to next generation is
  1.    Allele selection
  2.    Gene selection
  3.    Chromosome selection
  4.    Natural selection
 Discuss Question
Answer: Option D. -> Natural selection
Answer: (d).Natural selection
Question 214. The improved breed of cattle must be maintained by
  1.    Interbreeding
  2.    Outbreeding
  3.    Inbreeding
  4.    Self breeding
 Discuss Question
Answer: Option C. -> Inbreeding
Answer: (c).Inbreeding
Question 215. The seeds which are used for fertilization are called
  1.    Bad seeds
  2.    Good seeds
  3.    Selected seeds
  4.    Fertilized seeds
 Discuss Question
Answer: Option B. -> Good seeds
Answer: (b).Good seeds
Question 216. Melanin is a pigment of
  1.    Green colour
  2.    Black colour
  3.    White colour
  4.    Red colour
 Discuss Question
Answer: Option B. -> Black colour
Answer: (b).Black colour
Question 217. In natural selection, new varieties are produced by
  1.    Artificial selection
  2.    Natural selection
  3.    Blending
  4.    Co dominance
 Discuss Question
Answer: Option B. -> Natural selection
Answer: (b).Natural selection
Question 218. The method used to produce plants and animals with desirable traits is
  1.    Selection
  2.    Rejection
  3.    Breeding
  4.    Fertilization
 Discuss Question
Answer: Option A. -> Selection
Answer: (a).Selection
Question 219. In gene therapy the healthy gene are used to replace the
  1.    Dead gene
  2.    Abnormal gene
  3.    Defective gene
  4.    Old gene
 Discuss Question
Answer: Option C. -> Defective gene
Answer: (c).Defective gene
Question 220. A vector is a plasmid used to transfer the
  1.    Chromosome
  2.    Gene
  3.    Nucleus
  4.    Cell
 Discuss Question
Answer: Option B. -> Gene
Answer: (b).Gene

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