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BIOLOGY MCQs

Total Questions : 2561 | Page 10 of 257 pages
Question 91. In man there are how many pairs of homologous chromosomes?
  1.    46
  2.    23
  3.    16
  4.    11
 Discuss Question
Answer: Option B. -> 23
Question 92. It is composed of two polynucleotide chains which are coiled around each other in the form of a double helix.
  1.    DNA
  2.    RNA
  3.    Fats
  4.    None of the above
 Discuss Question
Answer: Option A. -> DNA
Question 93. What is the unit of heredity?
  1.    Cell
  2.    Blood
  3.    Gene
  4.    All of the above
 Discuss Question
Answer: Option C. -> Gene
Question 94. How many chromosomes are in a human gamete?
  1.    23
  2.    46
  3.    92
  4.    102
 Discuss Question
Answer: Option A. -> 23
Question 95. Who discovered genetic material?
  1.    Crick and Watson
  2.    Avery Mclood
  3.    Friedrich Griffith
  4.    Federik Meischer
 Discuss Question
Answer: Option C. -> Friedrich Griffith
Question 96. Which one of the following is not a genetic disorder?
  1.    Colour blindness
  2.    Down's syndrome
  3.    Haemophilia
  4.    Xerophthalmia
 Discuss Question
Answer: Option D. -> Xerophthalmia
Question 97. Who is known as Father of Modern Genetics?
  1.    Charles Darwin
  2.    Louis Pasteur
  3.    Gregor Mendel
  4.    Jean Baptiste Lamarck
 Discuss Question
Answer: Option C. -> Gregor Mendel
Question 98. The experimental material used by Gregor Mendel is ________
  1.    Pea plant
  2.    Drossophila
  3.    Potato plant
  4.    None of the above
 Discuss Question
Answer: Option A. -> Pea plant
Question 99. Mendel's second law is the law of
  1.    Segregation
  2.    Independent assortment
  3.    Dominance
  4.    Polygenic inheritance
 Discuss Question
Answer: Option B. -> Independent assortment
Question 100. How many pairs of chromosomes are found in a human cell?
  1.    18
  2.    23
  3.    27
  4.    32
 Discuss Question
Answer: Option B. -> 23

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