Thursday, 12 March 2020

12th Class Biology Most Repeated MCQs With Answers

In all board exams of Punjab Boards, Federal Boards, Sindh Boards, Balochistan Boards and Azad Jamu Kashmir Boards 12th Class Biology MCQs Question answers are the important part of that test. Here you will learn important objective type solved question answers learn here with important most repeated questions with solved answers.

Solved Objective Type Question Answers MCQs Punjab Board and Federal Boards
Chapter Wise Biology MCQs


2nd Year Federal and Punjab Board Biology MCQs


Q.1: In 1999,transgenic crops were planted world wide on more than ?
  1. 20 millions areas
  2. 35 millions areas
  3. 70 millions areas
  4. 90 millions areas
C
Q.2: Active membrane potential is ?
  1. 0.05 volts
  2. - 50 mv
  3. Both a And b
  4. 0.07 volts
C
Q.3: Each tRNA has a sequence of three bases called anticodon which is complementary to codon of ?
  1. rRNA
  2. tRNA
  3. mRNA
  4. snRNA
C
Q.4: Biorhythms are called circadian which means about one day so they are also called ?
  1. Diurnal pace
  2. Diurnal cadence
  3. Diurnal rhythms
  4. Diurnal tempo
C
Q.5: ABO system has four different phenotypes which are distinct from each other on the basis of specific antigens on the surface of ?
  1. Mitochondria
  2. Gogli bodies
  3. RBC
  4. Centrioles
C
Q.6: A plant has a growth pattern called ?
  1. Open growth
  2. Closed growth
  3. Round growth
  4. None of These
B
Q.7: Some amoeboflagellates ingested cyanobacteria and led to the development of ?
  1. Mitochondria
  2. Golgi apparatus
  3. Chloroplasts
  4. Vacuoles
A
Q.8: An ordered sequence of irrversible steps with each step setting up the necessary conditions for the next step is ?
  1. Embryology
  2. Growth
  3. Development
  4. None of these
C
Q.9: Which of the following is NOT recycled in ecosystem ?
  1. Carbon
  2. Sulphur
  3. Energy
  4. Water
C
Q.10: A full set of genes of an individual is called ?
  1. Genotype
  2. Genomic library
  3. Genome
  4. Allelomorph
C
Q.11: DNA finger prints can also be used as ?
  1. Crime evidence
  2. Forensic evidence
  3. Litigation evidence
  4. Offence evidence
B
Q.12: Fresh water flatworms excrete very dilute ?
  1. Plasma
  2. Tissue fluid
  3. Fluid
  4. Urine
D
Q.13: The most threatened areas on the earth have been reduced to 44% of their original extent are ?
  1. Tropical rain forests
  2. Temperate rain forests
  3. Carbiniferous forests
  4. Deciduous rain forests
A
Q.14: Each intervetebral disc is a cushion like pad composed of ?
  1. Nucleus pulposus
  2. Annulus fibrosus
  3. Stomium globosus
  4. Both a And b
D
Q.15: Innate behaviour is a collection of responses that are predetermined by the ?
  1. Heritage
  2. Birthright
  3. Inheritance
  4. Legacy
C
Q.16: The Syndrome which is an example of trisomy of the sex chromosome is ?
  1. Turner's syndrome
  2. Down's syndrome
  3. Klinefelter's syndrome
  4. Tay-Sach's syndrome
C
Q.17: Antidiuretic hormone is also called ?
  1. Oxytocin
  2. ACTH
  3. Vasopressin
  4. Both a And b
C
Q.18: 80% haemophiliacs suffer from haemophilia A due to abnormality of factor ?
  1. VIII
  2. IX
  3. X
  4. XI
A
Q.19: Advantage of pecking orders is to ?
  1. Avoids injury to the strong animals
  2. Protect territory
  3. Find suitable mate
  4. Assign specific role to individual subordinates
A
Q.20: Rain that falls on high areas such as mountains possesses large amount of garvitational ?
  1. Heat energy
  2. Kinetic energy
  3. Electrical energy
  4. Potential energy
D
Q.21: The series of changes which involve period of growths replication of DNA followed ny cell division may be named as ?
  1. DNA cycle
  2. Nuclear cycle
  3. Cell cycle
  4. Chemical cycle
C
Q.22: Earthworm is the ideal example of tubular excretory system called ?
  1. Protonephridia
  2. Mesonephridia
  3. Metanephridia
  4. Prenephridia
C
Q.23: The animals which are capable of varying degrees of endothermic heat production but generally do not regulate their body temperature within a narrow range ?
  1. Ectotherms
  2. Endotherms
  3. Heterotherms
  4. Homotherms
C
Q.24: Which of the following NOT dispose off a type of waste directly to the environment ?
  1. Digestive system
  2. Respiratory system
  3. Circulatory system
  4. Urinary system
C
Q.25: For evaporative cooling bats use ?
  1. Saliva
  2. Urine
  3. Sweat
  4. All a,b,andc
D

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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