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MCQs

Total Questions : 189 | Page 16 of 19 pages
Question 151. When YAC is used to clone DNA. What is the size of the DNA that can be cloned?
  1.    Large (upto megabases)
  2.    Small (upto few hundred bases)
  3.    No size restriction
  4.    Medium (upto kilobases)
 Discuss Question
Answer: Option A. -> Large (upto megabases)
Answer: (a).Large (upto megabases)
Question 152. TEL is the ______ sequence derived from the ends of ribosomal RNA-encoding molecules from the macromolecules of the protozoan Tetrahyena.
  1.    centromeric
  2.    telomeric
  3.    can be either centromeric or telomeric
  4.    can be present anywhere on the chromosome
 Discuss Question
Answer: Option B. -> telomeric
Answer: (b).telomeric
Question 153. Yeast episomal plasmids have the following feature?
  1.    They contain ARS and CEL both
  2.    They contain ARS but not CEL
  3.    They contain CEL but not ARS
  4.    CEL is necessarily present but ARS may or may not be present
 Discuss Question
Answer: Option B. -> They contain ARS but not CEL
Answer: (b).They contain ARS but not CEL
Question 154. Cis-acting REP 3 sequence is present in Yeast episomal plasmids. Choose the statement which holds true for it?
  1.    It is present along with chromosomal centromeric sequence
  2.    It is the site of action of proteins that help in partitioning
  3.    It gives less stability to that of YCs
  4.    The copy number is low than that of YCs
 Discuss Question
Answer: Option B. -> It is the site of action of proteins that help in partitioning
Answer: (b).It is the site of action of proteins that help in partitioning
Question 155. AtpB encodes _______ subunit of ATP synthase, an enzyme used for generation of ______
  1.    beta, ADP
  2.    alpha, ATP
  3.    beta, ATP
  4.    alpha, ADP
 Discuss Question
Answer: Option C. -> beta, ATP
Answer: (c).beta, ATP
Question 156. Bacterial aadA gene is responsible for conferring resistance to _________
  1.    spectinomycin
  2.    streptomycin
  3.    ampicillin
  4.    spectomycin and streptomycin
 Discuss Question
Answer: Option D. -> spectomycin and streptomycin
Answer: (d).spectomycin and streptomycin
Question 157. Chloroplast can be transferred through pollen in all crops.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 158. How many types of the chloroplast are there in Chlamydomonas?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 159. For transformation of the chloroplast of higher plants, a vector is used which ______ in the chloroplast.
  1.    doesn’t replicates
  2.    replicates
  3.    may or may not replicate
  4.    replicates under certain specified conditions
 Discuss Question
Answer: Option A. -> doesn’t replicates
Answer: (a).doesn’t replicates
Question 160. The host should ____ P elements, these elements lead to _______
  1.    not have, instability
  2.    have, stability
  3.    not have, increase the time taken for integration
  4.    have, reduces the time taken for integration
 Discuss Question
Answer: Option A. -> not have, instability
Answer: (a).not have, instability

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