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BIOINFORMATICS MCQs

Total Questions : 20 | Page 2 of 2 pages
Question 11. Which of the following is untrue regarding BLAST and FASTA?
  1.    FASTA is faster than BLAST
  2.    FASTA is the most accurate
  3.    BLAST has limited choices of databases
  4.    FASTA is more sensitive for DNA-DNA comparisons
 Discuss Question
Answer: Option A. -> FASTA is faster than BLAST
Question 12. Which database of pfam is having high quality data?
  1.    pfam A
  2.    pfam B
  3.    pfam C
  4.    pfam D
 Discuss Question
Answer: Option A. -> pfam A
Question 13. Which of the following does not describe BLAST?
  1.    It stands for Basic Local Alignment Search Tool
  2.    It uses word matching like FASTA
  3.    It is one of the tools of the NCBI
  4.    Even if no words are similar, there is an alignment to be considered
 Discuss Question
Answer: Option D. -> Even if no words are similar, there is an alignment to be considered
Question 14. Current working directory
  1.    $pd
  2.    $pwd
 Discuss Question
Answer: Option B. -> $pwd
Question 15. Which best describes the impact that the Human Genome Project has has on society?
  1.    It has helped scientists determine that certain genes can cause diseases 
  2.    It has led to discrimination against genetically flawed individuals
  3.    It has led to the appearance of new diseases
  4.    It has cost society billions of dollars without any major benefits
 Discuss Question
Answer: Option A. -> It has helped scientists determine that certain genes can cause diseases 
Question 16. The legless condition that is observed in several groups of extant reptiles is the result of
  1.    their common ancestor having been legless
  2.    a shared adaptation to an arboreal (living in trees) lifestyle
  3.    several instances of the legless condition arising independently of each other
  4.    individual lizards adapting to a fossorial (living in burrows) lifestyle during their lifetimes
 Discuss Question
Answer: Option C. -> several instances of the legless condition arising independently of each other
Question 17. The scientific discipline concerned with naming organisms is called -
  1.    taxonomy
  2.    cladistics
  3.    binomial nomenclature
  4.    systematics
 Discuss Question
Answer: Option A. -> taxonomy
Question 18. Which information was most important to the development of genetic engineering techniques?
  1.    the observation of nondominant alleles
  2.    the discovery of lethal genes
  3.    the formulation of Punnett squares
  4.    the structure of the DNA molecule
 Discuss Question
Answer: Option D. -> the structure of the DNA molecule
Question 19. Which of the following does not describe local alignment algorithm?
  1.    Score can be negative
  2.    Negative score is set to 0
  3.    First row and first column are set to 0 in initialization step
  4.    In traceback step, beginning is with the highest score, it ends when 0 is encountered
 Discuss Question
Answer: Option A. -> Score can be negative
Question 20. Among the following which one is not the approach to the local alignment?
  1.    Smith-Waterman algorithm
  2.    K-tuple method
  3.    Words method
  4.    Needleman-Wunsch algorithm
 Discuss Question
Answer: Option D. -> Needleman-Wunsch algorithm

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