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MCQs

Total Questions : 60 | Page 2 of 6 pages
Question 11. What is ordered list of location of genes along a chromosome called?
  1.    genetic map
  2.    chromosomal map
  3.    pedigree
  4.    linkage map
 Discuss Question
Answer: Option A. -> genetic map
Answer: (a).genetic map
Question 12. Which of following changes usually silences a gene?
  1.    methylation
  2.    phosphorylation
  3.    dimerization
  4.    inversion
 Discuss Question
Answer: Option A. -> methylation
Answer: (a).methylation
Question 13. If orientation of chromosome is reversed its called
  1.    duplication
  2.    deletion
  3.    inversion
  4.    rotation
 Discuss Question
Answer: Option C. -> inversion
Answer: (c).inversion
Question 14. Relative location of genes along a chromosome is shown by
  1.    chromosomal map
  2.    genetic map
  3.    linkage map
  4.    pedigree
 Discuss Question
Answer: Option C. -> linkage map
Answer: (c).linkage map
Question 15. Duchenne muscular dystrophy affects one in how many people in United States?
  1.    1000
  2.    3500
  3.    10000
  4.    5000
 Discuss Question
Answer: Option B. -> 3500
Answer: (b).3500
Question 16. Variation in phenotype depending upon which parent gene is inherited from is called
  1.    aneuploidy
  2.    translocation
  3.    genomic imprinting
  4.    Polyploid
 Discuss Question
Answer: Option C. -> genomic imprinting
Answer: (c).genomic imprinting
Question 17. Which of following disease have a low risk of occurring in Down?s syndrome patients?
  1.    malaria
  2.    leukemia
  3.    stroke
  4.    alzheimer's disease
 Discuss Question
Answer: Option C. -> stroke
Answer: (c).stroke
Question 18. Which of following is a result of crossing over?
  1.    silencing of genes
  2.    deletion of genes
  3.    recombination of genes
  4.    addition of genes
 Discuss Question
Answer: Option C. -> recombination of genes
Answer: (c).recombination of genes
Question 19. Number of copies of a gene that are being actively expressed is called
  1.    gene dosage
  2.    gene number
  3.    gene unit
  4.    gene replications
 Discuss Question
Answer: Option A. -> gene dosage
Answer: (a).gene dosage
Question 20. Which of following scientists studies X chromosome inactivation?
  1.    Watson
  2.    Walter s. Sutton
  3.    Mendel
  4.    Mary Lyon
 Discuss Question
Answer: Option D. -> Mary Lyon
Answer: (d).Mary Lyon

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