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Biology

Genetics And Evolution MCQs

Practice Genetics And Evolution MCQs for competitive exams.

Genetics And Evolution MCQs

Practice questions from this topic.

Which of the following was found to possess the genes for functions like oncogenesis, opine synthesis, opine breakdown, differentiation of the tumour into root, shoot or root and shoot on a hormoneless synthetic medium?

  1. A. Ti - plasmids
  2. B. Ti opine-genes
  3. C. Ri - plasmids
  4. D. T - DNAs
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In pea plants the red and white flower colour tall and dwarf characters, the seed colour and shape all exhibit

  1. A. Incomplete linkage
  2. B. Complete linkage
  3. C. Incomplete penetration
  4. D. Complete penetration
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Consider the following statements. 1. The sickle cell anaemia is a genetic disease common in tropical and sub-tropical countries. 2. The sickle-cell anaemia is due to mutation in b-globulin gene. 3. Due to the sickle-shaped anaemia, oxygen carrying capacity of the haemoglobin decreases. Which of the statements given above is/are correct?

  1. A. Only 1
  2. B. 1, 2 and 3
  3. C. 2 and 3
  4. D. Only 3
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Match List-I (Theories) with List-II (Statements) and select the correct answer: List-I List-II a. Theory of spontaneous generation 1. All forms of life were specially created by the God Almighty b. Theory of extra terrestrial origin of life 2. The organisms remain unalterable throughout their individual existence and will continue in the same unchanging state throughout eternity c. Theory of eternity of present conditions 3. Life originated from inert organic matter as a result of a series of physico - chemical conditions d. Theory of creationism 4. Earth received the vital seeds from other world by means of ultra-microscopic germs

  1. A. a-1, b-2, c-3, d-4
  2. B. a-3, b-4, c-2, d-1
  3. C. a-4, b-1, c-2, d-3
  4. D. a-4, b-3, c-2, d-1
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Preserved traces of living organisms retained in the form of impressions of the body parts in the soil are called . . . . . . . .

  1. A. specimen
  2. B. fossils
  3. C. antique
  4. D. phylogeny
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Gene located on mitochondrial DNA

  1. A. generally show maternal inheritance
  2. B. are always inherited frommale parent
  3. C. show biparental inheritance
  4. D. are not inherited like the nuclear gene
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Consider the following statements 1. The first organism were heterotrophs. 2. Life appeared first in water. 3. There is no life on moon because of absence of water. Which of the statements given above is/are true?

  1. A. 1 and 2
  2. B. 1 and 3
  3. C. 1, 2 and 3
  4. D. None of these
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Theory of natural selection was given by

  1. A. Lamarck
  2. B. Darwin
  3. C. Alfred Wallace
  4. D. JBS Haldane
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The most ancient and oldest unmetamorphosed sedimentary terrestrial rocks that contain the fossils of micro-organisms belong to the

  1. A. Swaziland system of South Africa
  2. B. Bulawayo system of South Rhodesia
  3. C. Shale system of peninsular Michigan
  4. D. None of the above
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A contemporary of Charles Darwin who came to the same conclusion in the matter of organic evolution, was

  1. A. Jean Baptist Lamarck
  2. B. Thomas Huxley
  3. C. Alfred Russel Wallace
  4. D. Franklin Benjamin
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The most commonly used enzymes for the purpose of degrading cell wall include

  1. A. Lactase
  2. B. Hemicellulase
  3. C. Dehydrogenase
  4. D. Both A and C
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The A form of DNA has which of the following numbers of base pairs?

  1. A. Eleven
  2. B. Twelve
  3. C. Ten
  4. D. Zero
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