|Biology 2nd Year MCQs Notes|
2nd Year Biology Question Answers MCQs Quiz List Online
Q.1: In chordates the healing of fracture and repair of a skin wound are some other examples of ?
Q.2: The outer layer of the blastocyst which laterattaches tothe uterus is ?
- Inner cell mass
Q.3: Human appendix, coccyx and nictiating membrane of the eye are ?
- Vestigical organs
- Homologous organs
- Analogous organs
- Embroyonic organs
Q.4: From Hensen's node,dorsal mesoderm is formed and is organized into ?
Q.5: A man bolld group A marries a women of blood goroup B and they have one child. Which one of the following statements abo ut the child's blood is correct ?
- It could be group A only
- It could be group AB only
- It could be group A or Group B only
- It could be any of the groups A,B,AB, O
Q.6: In myelinated neurons the impulse jumps from node to node (node of Ranvier) This is called ?
- Myelinated impulse
- Jumping impulse
- Saltatory impulse
- None of these
Q.7: The interaction between different genes occupying different loci is ?
- Bombay phenotype
Q.8: Adult transgenic tobacco plants glowed when sprayed with the substrate ?
Q.9: In amoeba movement takes place by means of ?
Q.10: A hurdened outer surface to which internal muscles can be attached is ?
- Hydrostatic skeleton
- Axial skeleton
Q.11: The funnction of the tubules in muscle contraction is to ?
- Make and store glycogen
- Release Ca into the cell interior and then pick it up again
- Make the action potential deep into the muscle cells:
- To hamper the nerve impulse
Q.12: Okazaki fragments are about 1000 - 2000 nucleotides long in ?
- Both a And b
- None of these
Q.13: Pinus wallichiana pinus roxbugil Abies pindrow picea smithiana Cederous deodara are plants of ?
- Coniferous alpine and boreal forests
- Temperate deciduous forests
- Tropical rain forests
- Grassland ecosystem
Q.14: The pairing of homologous chromosomes is completed in ?
Q.15: Which prosess is characterized by movement and rearrangement of cells in the embryo ?
- None of these
Q.16: Long-day plants will flower in short days if the interrupted period is ?
- Long night
- Short Night
- Long day
- Short day
Q.17: Abscisic acid can be sprayed on tee crops to regulate ?
- Leaf drop
- Shoot drop
- Cone drop
- Fruit drop
Q.18: German botanist Gottlieb Haberlandi said in 1902 that plant cells are ?
Q.19: It is estimated that human genome could take an encyclopaedia of 200 volumes each with ?
- 10 pages
- 100 pages
- 1000 pages
- 10,000 pages
Q.20: Frogs and toads also walk and hop on land due to strong ?
Q.21: Bolld group B phenotype contains anti-A antiboides in the serum and agglutinates any RBC with antigen ?
Q.22: What does not happen during inspiration in man ?
- Intercoatals musles contract
- Ribs are elevated
- Diphragm becomedome- shaped
- Ribs move forwards
Q.23: Downs syndrome (Mongolism) occurs in man during which chromosome falls to segregate resulting gamete with ?
- 20 chromosomes
- 21 chromosomes
- 22 chromosomes
- 24 chromosomes
Q.24: A callus is an undifferentiated group of ?
Q.25: The disorder in which bones are porous and thin but bone composition normal is ?