Biology MCQ Important Questions Answers Download PDF Online Quiz

Biology MCQ Important Questions Answers Download PDF Online Quiz, biology objective questions, biology objective questions and answers pdf, multiple choice questions on biology, biology multiple choice quiz, biology objective type questions, biology multiple choice questions,human and social biology multiple choice questions, Online Questions and answers for Biology class 10th 11th and 12th. Download GK question answers for the biology. Competitive exam and PMT exam question answers. Current affairs questions and for other competitive exams like SSC cgl, Bank, air force we have biggest collections of important questions answers.

Biology MCQ Important Questions Answers

Biology is one of the Interesting and totally related with our atmosphere, human body and animals. There are multiple choice questions and answer you need to play a quiz for solve all the answers. test your biology knowledge.

Q1 DNA structure was first described by

  1. Catcheside
  2. Nirenberg
  3. Lederberg
  4. Watson and Crick
  5. Answer is: Watson and Crick

Q2 Identical twins are born, when

  1. Two sperms fertilize two ova
  2. Two sperms fertilize one ovum
  3. One sperm fertilize one ovum
  4. One sperm fertilize one ovum. Zygote cleaves into two cells that develop independently.
  5. Answer is: Two sperms fertilize one ovum

Q3 All eukaryotic unicellular organisms belong to

  1. Monera
  2. Protista
  3. Fungi
  4. Bacteria
  5. Answer is: Protista

Q4 The five kingdom classification was proposed by

  1. R.H. Whittaker
  2. B. C.Linnaeus
  3. C. A. Roxberg
  4. D. Virchow
  5. Answer is: R.H. Whittaker

Q5 Organisms living in salty areas are called as

  1. Methanogens
  2. Halophiles
  3. Heliophytes
  4. Thermoacidophiles
  5. Answer is: Halophiles

Q6 Naked cytoplasm, multinucleated and saprophytic are the characteristics of

  1. Monera
  2. Fungi
  3. Slime molds
  4. Protista
  5. Answer is: Slime molds

Q7 Which of the following is used as an atmospheric pollution indicator?

  1. Lepidoptera
  2. Lichens
  3. Lycopersicon
  4. Lycopodium
  5. Answer is: Lichens

Q8 The theory of spontaneous generation stated that:

  1. Life arose from living forms only.
  2. Life can arise from both living and non-living.
  3. Life arises spontaneously, neither from living nor from the non-living.
  4. Life can arise from non-living things only.
  5. Answer is: Life can arise from non-living things only.

Q9 Appearance of antibiotic-resistant bacteria is an example of:

  1. Adaptive radiation
  2. Pre-existing variation in the population
  3. Transduction
  4. Divergent evolution
  5. Answer is: Pre-existing variation in the population

Q10 Evolution of life shows that life forms had a trend of moving from:

  1. water to land
  2. Land to water
  3. Fresh water to sea water
  4. Dryland to wet land
  5. Answer is: water to land

Q11 Gene mutation takes place in

  1. Deoxyribonucleric acid
  2. Mitochondrion
  3. Ribosome
  4. Chloroplast
  5. Answer is: Mitochondrion

Q12 Acromegaly is caused by irregular secretion of

  1. Thyroid
  2. Pituitary
  3. Adrenal
  4. Pancreas
  5. Answer is: Pituitary

Q13 The pteridophyte produces two kinds of spores.

  1. Selaginella
  2. Adiantum
  3. Psilotum
  4. lycopodium
  5. Answer is: Selaginella

Q14 The branch of agriculture which deals with the feeding, shelter, health and breeding of the domestic animals is called ?

  1. Animal Husbandry
  2. Poultry
  3. Veterinary Science
  4. Dairy Science
  5. Answer is: Animal Husbandry

Q15 Hay fever is a sign of ?

  1. Malnutrition
  2. Over Work
  3. Old Age
  4. Allergy
  5. Answer is: Allergy

Q16 Which is the chief nitrogenous waste in humans ?

  1. Urea
  2. Uric acid
  3. Ammonia
  4. Ammonium nitrate
  5. Answer is: Urea

Q17 Which one of the following is not a true fish ?

  1. Starfish
  2. Shark
  3. Eel
  4. Sea-horse
  5. Answer is: Starfish

Q18 Who discovered the Polio vaccine ?

  1. Jonas Salk
  2. Louis Pasteur
  3. Eli Whitney
  4. Konrad Zuse
  5. Answer is: Jonas Salk

Q19 The primary source of carbohydrates are ?

  1. Crude oil
  2. Coal-far
  3. Plants
  4. Marine Animals
  5. Answer is: Coal-far

Q20 Carrot is orange in color because ?

  1. It contains carotene
  2. It is not exposed to sunlight
  3. It grows in the soil
  4. The entire plant is orange in color
  5. Answer is: It contains carotene

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