Q. 1
Which photosynthetic pigment reflects yellow red light?
- a. Chlorophyll A
- b. Chlorophyll B
- c. Carotenoid
- d. Xanthophylls
- e. Phytochrome
- Answer: A
Q. 2
Which of the following is an example for denitrifying bacteria?
- a. Nitrosomonas sp
- b. Nitrobacter sp
- c. Rhizobium sp
- d. Pseodomonas sp
- e. All of the above
- Answer: A
Q. 3
Which of the following glands secrete the FSH hormone?
- a. Islets of Langerhans
- b. Anterior pituitary gland
- c. Posterior pituitary gland
- d. Parathyroid gland
- e. Testis
- Answer: A
Q. 4
Which among the following processes results in dark coloured amorphous substance during decomposition in soil?
- a. Mineralization
- b. Fragmentation
- c. Leaching
- d. Humification
- e. None of the above
- Answer: A
Q. 5
By which of the following processes, does the exchange of DNA occur due to pairing of two chromosomes?
- a. Mutation
- b. Crossing over
- c. Mitosis
- d. Transduction
- e. Transformation
- Answer: A
Q. 6
Archaeopteryx belongs to the
- a. Jurassic era
- b. Deuonian era
- c. Cretaceous era
- d. Triassic era
- e. None of these
- Answer: A
Q. 7
Spleen is an organ of which of the following systems?
- a. Digestive system
- b. Endocrine system
- c. Excretory system
- d. Lymphatic system
- e. Respiratory system
- Answer: A
Q. 8
A region with high level of endemic species that is under threat from humans is called
- a. Botanical garden
- b. Wild life Sanctuaries
- c. Zoos
- d. Biodiversity hotspot
- e. None of these
- Answer: A
Q. 9
G protein receptors have
- a. 5 transmembrane ?? helices
- b. 7 transmembrane ?? helices
- c. 5 transmembrane ?? helices
- d. 6 transmembrane ?? helices
- e. 7 transmembrane ?? helices
- Answer: A
Q. 10
Which of the following metals is responsible for Itai-itai disease?
- a. Arsenic
- b. Cadmium
- c. Lead
- d. Mercury
- e. Uranium
- Answer: A
Q. 11
Which of the following produces angiotensinogen?
- a. Liver
- b. Pancreas
- c. Kidney
- d. Thyroid gland
- e. Pituitary gland
- Answer: A
Q. 12
Deposition of sediments or sediment accumulation is known as
- a. Profundation
- b. Aggradation
- c. Biocoenosis
- d. Trophic succession
- e. None of these
- Answer: A
Q. 13
What is the inactivated X chromosome in females called?
- a. Barr body
- b. Heterochromatin
- c. Euchromatin
- d. Nucleosome
- e. None of the above
- Answer: A
Q. 14
Lowest area of water body is called
- a. Littoral zone
- b. Aphotic zone
- c. Photic zone
- d. Benthic zone
- e. None of the above
- Answer: A
Q. 15
The type of petrification in which the organic matter of the dead body is replaced by double carbonates of calcium and magnesium is called
- a. Silicification
- b. Pyritization
- c. Carbonization
- d. Dolomitization
- e. None of these
- Answer: A