Wednesday, 11 March 2020

12th Class Biology Question Answers MCQs For Exams Tests

These MCQs are taken form the 12th Class Punjab and Federal Board exams Punjab Book All of these Question Answers Book MCQs are helpful for Preparations of Entry Tests in which Biology question answers are the part of tests. Interviews and Viva of Biology 2nd Year in all Pakistan exams and tests learn with solve quiz test. Objective Type 12th Class Biology MCQs With Answers for MDCAT Entry Tests and Other Medical Jobs Tests.

Objective Typw Question Answers Biology 12th Class MCQs
12 Class Biology Chapter Wise Notes MCQs

Medical Jobs Tests Preparations MCQs List

Q.1: The total aggregate of genes in a population at any one time is called the populations gene ?
  1. Puddle
  2. Lake
  3. Pool
  4. Pond
Q.2: The main transmitter for synapses that lie outside the central nervous system is ?
  1. Adrenaline
  2. Acetylcholine
  3. Serotonin
  4. Dopamine
Q.3: The union of meiotically produced specialized sex cells from each parents produce ?
  1. Fertilized egg
  2. Unfertilized egg
  3. Zygote
  4. Both a And c
Q.4: The tumours which are of small size and localized are ?
  1. Bengin
  2. Malignant
  3. Gentle
  4. Nasty
Q.5: The average rainfall is between 750 - 1500 mm in ?
  1. Temperate deciduous forests
  2. Coniferous alpine and boreal forests
  3. Tropical rain forests
  4. Grassland ecosystem
Q.6: Which of the following is common in all neurons ?
  1. A cell body which contains a nucleus
  2. A thick myelin sheath
  3. Presence of nodes of Ranvier
  4. Presence of Schwann cells
Q.7: Primary tissue is added by the ?
  1. Lateral meristem
  2. Underground meristem
  3. Apical meristem
  4. Vertical meristem
Q.8: The end products of haemoglobin breakdown and metabolites of various hormones is ?
  1. Glucagon
  2. Bilirubin
  3. Keratin
  4. Serotonin
Q.9: The number of nucleotides in the DNA of a typical human chromosome is about ?
  1. 10 Million
  2. 40 million
  3. 80 million
  4. 140 million
Q.10: Who was the first to propose an objective definition of instincts in terms of animal behaviour ?
  1. Darwin
  2. Lamarck
  3. Wallace
  4. Lyell
Q.11: Kidney health is described in terms of ?
  1. The number of kidney stones
  2. Rate of filteration
  3. Water retension
  4. Blood clot
Q.12: Clear cytoplasm produces ?
  1. Larval epidermis
  2. Muscle cells
  3. Gut
  4. Neural tube
Q.13: Excess MSH is secreted in ?
  1. Addison's disease
  2. Parkinson's disease
  3. Grave's disease
  4. Alzheimer's disease
Q.14: Annual rain fall in deserts is less than ?
  1. 25 to 50 cm
  2. 10 to 22 cm
  3. 15 - 25 cm
  4. 20 to 40 cm
Q.15: What will occur if a drug at the neuromuscular junction blocks the receptors sites on the post synaptic membrane ?
  1. Inhibition of Acetylchlorine release
  2. Muscle contraction
  3. Muscle paralysis
  4. Release of calcium ions
Q.16: The negative physiological changes in our body are said to be ?
  1. Maturation
  2. Childhood
  3. Agning
  4. Displacement
Q.17: Bipedal locomotion freed the front appendages which become adapted for ?
  1. Prey capture
  2. Flight
  3. Both a And b
  4. None of these
Q.18: Innate behavior is all but ?
  1. Heritable
  2. Intrinsic
  3. Sterotypic
  4. Flexible
Q.19: The best way to increase food production from ecosystem view point is ?
  1. To increase cultivable land by clearing forest
  2. Use of excessive fertilizers
  3. Use of high quality pesticides
  4. Use of genetically improved varieties of seeds
Q.20: A change in the community structure of an ecosystem over a period of time is ?
  1. Ecological niche
  2. Ecological mutation
  3. Succession
  4. Genetic Drift
Q.21: Water is stored for use during the period of drought in fleshy stems of ?
  1. Cacti
  2. Euphoribia
  3. Both a And b
  4. None of these
Q.22: In hershey And chase experiment, 32p labeled bacteriophages allowed to infect the becteria. During analysis 32 p activity wa detected?
  1. In culture medium
  2. On the surface of becterial cell
  3. Inside the becteiral cell
  4. Both a and B
Q.23: Cortisol brings about an increase in blood glucose level mainly by its production from protein ?
  1. Insulin
  2. Glucagons
  3. Oestrogen
  4. Progesterone
Q.24: When the human blood leaves the capillary bed of the tissue, most of the carbon dioxide is inthe ?
  1. Carbonic acid
  2. Bicarbonate ions
  3. Carboxylic acids
  4. None of them
Q.25: Hereditary characteristics pass from parents to offspring through genes in their ?
  1. Nuclei
  2. DNA
  3. Gametes
  4. Body

F.Sc Part II | 12th Class | 2nd Year Biology Chapter Wise MCQs

TEST 1 || TEST 2 || TEST 3 || TEST 4 || TEST 5 || TEST 6 || TEST 7 || TEST 8 || TEST 9 || TEST 10 || TEST 11


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