Wednesday, 11 March 2020

12th Class Biology Punjab Federal Board MCQs with Answers List

If you are looking for 12th Class Biology Objective Type Question Answers here you are on right page. You will learn on this website Biology question answers chapter wise notes. All of these MCQs are helpful for MDCAT and other Medical Entry Test Preparations. Mostly In MCAT and MDCAT Veterinary Exams Biology From Intermediate level question answers asked in Papers. So, learn these MCQs Notes for Jobs interviews tests.

Objective Type MCQs With Answers Biology 12th Class Punjab Federal Boards
Second Year Biology MCQs

12th Class Biology MCQs With Answers





Q.1: Inheritance of skin colour in man is controlled by eight pairs of genes , which are ?
  1. Linked
  2. Codominent
  3. Multiple alleles
  4. Assorting independently
C
Q.2: The causes of green house effect are ?
  1. Over urbanization
  2. Deforestation
  3. Industrialization
  4. All of them
D
Q.3: According to one of the speculations life may have begun deep in the oceans in underwater hot springs called hydrothermal ?
  1. Apertures
  2. Gaps
  3. Vents
  4. Outlets
C
Q.4: Each muscle fibre contains a large number of myofibrils having a diameter of ?
  1. 1 - 2 mm
  2. 1 - 5 mm
  3. 2 - 4 mm
  4. 3 - 7 mm
A
Q.5: Similarity in characteristics resulting from common ancestry is known as ?
  1. Analogy
  2. Homology
  3. Evolutionary relationship
  4. Phylogeny
B
Q.6: A monochromat can perceive ?
  1. Three colours
  2. Yellow colours
  3. Only ane colour
  4. Two colours
C
Q.7: DNA threads are chemically cut into pieces of different sizes in ?
  1. Maxam-Gilbert method
  2. Sanger's method
  3. Smith's method
  4. Sanford's method
D
Q.8: ABO blood group system was discovered by ?
  1. Karn Ladsteiner
  2. Bernstein
  3. Correns
  4. T.H.morgans
A
Q.9: Cocklebur (Xanthium),chrysanthemum,soyabean,tobacco,strawberry are examples of ?
  1. Short day plants
  2. Long day plants
  3. Day-neutral plants
  4. None of these
A
Q.10: Which will occur as a result of nondescent of the testes ?
  1. Mal esex hormones will not be circulated in the body
  2. Sperm will have no means of exit from the body
  3. Inadequate blood supply will retard the development of the testes
  4. Variable sperm willnot be produced
D
Q.11: In 1970 Hamilton D.Smith at Johns Hopkins University isolated the first ?
  1. DNA polymerase
  2. DNA ligase
  3. Diastase
  4. Restriction enzyme
D
Q.12: A network of very fine threads called chromatin can be visualized in call during ?
  1. Interphase
  2. Prophase
  3. Metaphase
  4. Anaphase
B
Q.13: The simplest form of learning is ?
  1. Habituation
  2. Latent learning
  3. Imprinting
  4. Insight learning
A
Q.14: In the double helix of DNA adenine forms two hydrogen bonds with ?
  1. Thymine
  2. Guanine
  3. Cytosine
  4. Uracil
A
Q.15: The groups of ribosomes present in the cell body of the neuron, which are associated with nough endoplasmic reticulum are called?
  1. Meissner's corpusles
  2. Pacinian corpucles
  3. Nissl's gronules
  4. Lysosome granules
C
Q.16: Genetic code is a combination of 3 nucleotides in DNA which specify a particular ?
  1. Amino acid
  2. Fatty acid
  3. Vitamin
  4. Steriod
A
Q.17: A pair of kidneys consists of millons of functional units called ?
  1. Nephrons
  2. Neurons
  3. Dendrons
  4. Flatirons
A
Q.18: Bowman capsule continues as extensively convoluted proximal tubule loop of henie and the distal tubule which empties into ?
  1. Collecting tubules
  2. Malpighian tubules
  3. Renal tubules
  4. Neural tubules
A
Q.19: The gene for blue opsin is present on autosome ?
  1. 1
  2. 3
  3. 5
  4. 7
D
Q.20: The mammalism forebrain is differetiated into the thalamus, imbic system and the ?
  1. Cerebellum
  2. Cerebrum
  3. Hippocampus
  4. Hypothalamus
B
Q.21: In grassland ecosystem annual rainfall is about 250 to ?
  1. 350 mm
  2. 450 mm
  3. 650 mm
  4. 750 mm
D
Q.22: Jean Baptiste Lamarck published his theory of evolution in ?
  1. 1757
  2. 1809
  3. 1859
  4. 1945
B
Q.23: Dialysis cleans the blood either by ?
  1. Passing it through an artificial kidney
  2. Filtering it within abdomen
  3. Removing the whole blood from body
  4. Both aAndb
D
Q.24: If fertilization does not occur the corpus luteum starts ?
  1. Progesterone
  2. Menstrual cycle
  3. Degenerating
  4. Regenerating
C
Q.25: Which plants have the adaptation to remove the flooding of its cells in fresh water ?
  1. Xerophytes
  2. Mesophytes
  3. Hydrophytes
  4. Chondrocytes
C


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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