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MCQs

Total Questions : 194 | Page 2 of 20 pages
Question 11. Which of following rule states that probability of an event that can occur in two or more independent, mutually exclusive ways is sum of individual probabilities?
  1.    addition rule
  2.    multiplication rule
  3.    subtraction rule
  4.    division rule
 Discuss Question
Answer: Option A. -> addition rule
Answer: (a).addition rule
Question 12. Which term is used to describe an organism's genetic makeup?
  1.    characteristic
  2.    phenotype
  3.    genotype
  4.    traits
 Discuss Question
Answer: Option C. -> genotype
Answer: (c).genotype
Question 13. Second filial generation produced by first generation pollinating itself is called
  1.    F2
  2.    F1
  3.    p
  4.    F4
 Discuss Question
Answer: Option A. -> F2
Answer: (a).F2
Question 14. When phenotypic effect of a gene disrupts effect of a gene at another locus, it is called as
  1.    metastasis
  2.    epistasis
  3.    pleiotropy
  4.    Polytropy
 Discuss Question
Answer: Option B. -> epistasis
Answer: (b).epistasis
Question 15. Chorionic villus sampling is done by taking a sample of tissue from which of following?
  1.    uterus
  2.    amniotic fluid
  3.    embryo
  4.    placenta
 Discuss Question
Answer: Option D. -> placenta
Answer: (d).placenta
Question 16. Which of following traits is denoted by small alphabets?
  1.    dominant
  2.    recessive
  3.    absent
  4.    hidden
 Discuss Question
Answer: Option B. -> recessive
Answer: (b).recessive
Question 17. Which of following is true for attached earlobes?
  1.    dominant trait
  2.    recessive trait
  3.    silent trait
  4.    universal trait
 Discuss Question
Answer: Option A. -> dominant trait
Answer: (a).dominant trait
Question 18. A disease of nervous system caused by a dominant allele that has no obvious phenotype till 40 years of age is called
  1.    alzheimer's disease
  2.    parkinson's disease
  3.    Huntington's disease
  4.    Tay Sach's
 Discuss Question
Answer: Option C. -> Huntington's disease
Answer: (c).Huntington's disease
Question 19. How many sickle cell alleles does it take for disease to manifest itself?
  1.    1
  2.    2
  3.    4
  4.    0
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 20. When two alleles each affect phenotype in separate distinguishable ways, they are said to be
  1.    codominant
  2.    semi dominant
  3.    totally dominant
  4.    incomplete dominant
 Discuss Question
Answer: Option A. -> codominant
Answer: (a).codominant

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