|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 ?
- 20 millions areas
- 35 millions areas
- 70 millions areas
- 90 millions areas
Q.2: Active membrane potential is ?
- 0.05 volts
- - 50 mv
- Both a And b
- 0.07 volts
Q.3: Each tRNA has a sequence of three bases called anticodon which is complementary to codon of ?
Q.4: Biorhythms are called circadian which means about one day so they are also called ?
- Diurnal pace
- Diurnal cadence
- Diurnal rhythms
- Diurnal tempo
Q.5: ABO system has four different phenotypes which are distinct from each other on the basis of specific antigens on the surface of ?
- Gogli bodies
Q.6: A plant has a growth pattern called ?
- Open growth
- Closed growth
- Round growth
- None of These
Q.7: Some amoeboflagellates ingested cyanobacteria and led to the development of ?
- Golgi apparatus
Q.8: An ordered sequence of irrversible steps with each step setting up the necessary conditions for the next step is ?
- None of these
Q.9: Which of the following is NOT recycled in ecosystem ?
Q.10: A full set of genes of an individual is called ?
- Genomic library
Q.11: DNA finger prints can also be used as ?
- Crime evidence
- Forensic evidence
- Litigation evidence
- Offence evidence
Q.12: Fresh water flatworms excrete very dilute ?
- Tissue fluid
Q.13: The most threatened areas on the earth have been reduced to 44% of their original extent are ?
- Tropical rain forests
- Temperate rain forests
- Carbiniferous forests
- Deciduous rain forests
Q.14: Each intervetebral disc is a cushion like pad composed of ?
- Nucleus pulposus
- Annulus fibrosus
- Stomium globosus
- Both a And b
Q.15: Innate behaviour is a collection of responses that are predetermined by the ?
Q.16: The Syndrome which is an example of trisomy of the sex chromosome is ?
- Turner's syndrome
- Down's syndrome
- Klinefelter's syndrome
- Tay-Sach's syndrome
Q.17: Antidiuretic hormone is also called ?
- Both a And b
Q.18: 80% haemophiliacs suffer from haemophilia A due to abnormality of factor ?
Q.19: Advantage of pecking orders is to ?
- Avoids injury to the strong animals
- Protect territory
- Find suitable mate
- Assign specific role to individual subordinates
Q.20: Rain that falls on high areas such as mountains possesses large amount of garvitational ?
- Heat energy
- Kinetic energy
- Electrical energy
- Potential energy
Q.21: The series of changes which involve period of growths replication of DNA followed ny cell division may be named as ?
- DNA cycle
- Nuclear cycle
- Cell cycle
- Chemical cycle
Q.22: Earthworm is the ideal example of tubular excretory system called ?
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 ?
Q.24: Which of the following NOT dispose off a type of waste directly to the environment ?
- Digestive system
- Respiratory system
- Circulatory system
- Urinary system
Q.25: For evaporative cooling bats use ?
- All a,b,andc