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Evolution Test - 62

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Evolution Test - 62
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  • Question 1
    1 / -0
    Who is regarded as "Darwin of 20th century"?
    Solution
    Option (C) is correct here.
    Ernst Mayr is known as Darwin of 20th century.He is known as he contributed a lot to the science. He was a leading evolutionary biologist in his time.He prompted and dispersed Darwin's Hypotheses.
  • Question 2
    1 / -0
    Celestial body with a tail is
  • Question 3
    1 / -0
    The finch species of Galapagos Islands are grouped according to their food sources. Which of the following is not a finch fond?
    Solution
    • The small black birds found on Galapagos islands, which later came to be known as Darwin's finches were originally adapted with seed-eating features. 
    • From these many other forms evolved with altered beaks depending on the food habit. This enabled them to become insectivorous and vegetarian finches. But no species of finch fed on carrion (decaying dead matter).
    So, the correct answer is 'Carrion'
  • Question 4
    1 / -0
    Number of aeons in geological time scale is
  • Question 5
    1 / -0
    Presence of a single supercontinent on earth some 250 million years back was proposed by
  • Question 6
    1 / -0
    9% of Hardy Weinberg population of 800 are recessive. How many of this population are heterozygous?
    Solution
    According to the Hardy-Weinberg principle, 
    p2 + 2pq + q2 = 1
    Here, p and q represent the individual allele frequencies. 
    Therefore,  p2= frequency of homozygous condition represented by p.
    q2= frequency of homozygous alleles represented by q.
    2pq = frequency of heterozygous condition.
    Here, p2 = 0.09, hence p = 0.3
    Using p + q = 1, q = 0.7
    So, the allelic frequency of heterozygous population, 
    2pq = 2 × 0.3 × 0.7 = 0.42
    So, the heterozygous population = 0.42 × 800 = 336.
    So, the correct option is '336'.
  • Question 7
    1 / -0
    Amber belongs to
  • Question 8
    1 / -0
    Wegener (1912) put forward a famous theory known as
  • Question 9
    1 / -0
    Single land mass present before 250 million years ago has been named as
  • Question 10
    1 / -0
    In Hardy-Weinberg equation the frequency of heterozygous individuals is represented by :
    Solution
    The Hardy-Weinberg equation is given by :
    p² + 2pq + q² = 1
    Here, p and q represent the individual allele frequencies. 
    Therefore, p² = frequency of homozygous condition represented by p.
    q² = frequency of homozygous alleles represented by q.
    and 2pq = frequency of heterozygous condition.
    So, the correct answer is '2pq'
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