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MCQs

Total Questions : 189 | Page 14 of 19 pages
Question 131. For carrying out gene manipulation, the use of cultured cells is _____ transgenic organisms.
  1.    less reliable
  2.    more reliable
  3.    may be less or more reliable
  4.    is same reliable as
 Discuss Question
Answer: Option A. -> less reliable
Answer: (a).less reliable
Question 132. If controlled inactivation of a gene is carried out and some of the consequences when inactivation of a target gene is deleterious are avoided. It is referred as ____________
  1.    specialized gene targeting
  2.    controlled gene targeting
  3.    conditional gene targeting
  4.    specific gene targeting
 Discuss Question
Answer: Option C. -> conditional gene targeting
Answer: (c).conditional gene targeting
Question 133. For homozygotes, the expected genotype frequencies are
  1.    q2
  2.    p2
  3.    pq
  4.    2pq
 Discuss Question
Answer: Option B. -> p2
Answer: (b).p2
Question 134. Allele and genotype frequencies in a population will remain constant from generation to generation in absence of other evolutionary influences state the law
  1.    of evolution
  2.    of replication
  3.    of genetic variation
  4.    Hardy-Weinberg
 Discuss Question
Answer: Option D. -> Hardy-Weinberg
Answer: (d).Hardy-Weinberg
Question 135. Hardy-Weinberg proportions are
  1.    p2
  2.    q2
  3.    2pq
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 136. The red-green color blindness trait in Western- European males affects about
  1.    1 in 12
  2.    1 in 12
  3.    3 in 12
  4.    4 in 12
 Discuss Question
Answer: Option B. -> 1 in 12
Answer: (b).1 in 12
Question 137. The gene which cannot be determined by observing the organism is
  1.    dominant
  2.    recessive
  3.    allele
  4.    phenotype
 Discuss Question
Answer: Option B. -> recessive
Answer: (b).recessive
Question 138. If union of gametes to produce next generation is random, than the allele frequencies between generations are
  1.    increasing
  2.    decreasing
  3.    constant
  4.    zero
 Discuss Question
Answer: Option C. -> constant
Answer: (c).constant
Question 139. The assumptions underlying Hardy- Weinberg equilibrium are
  1.    organisms are diploid
  2.    mating is random
  3.    population size is infinitely large
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 140. For a single gene trait, a number of genetic disorders are caused when an individual inherits
  1.    two dominant alleles
  2.    one dominant allele
  3.    one recessive allele
  4.    two recessive alleles
 Discuss Question
Answer: Option D. -> two recessive alleles
Answer: (d).two recessive alleles

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