CSIR Paper 2 Life Science Questions (Part 8 of 10)

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  1. During germination of seeds, after imbibitions of water first step would be

    1. Mobilization of reserve food

    2. Transcription of specific genes

    3. Cell division

    4. Embryo differentiation

  2. In tissue culture experiment to initiated to shoots from undifferentiated mass of cell the medium must contain

    1. low auxina dn high cytokinin

    2. High auxin adn high cytokinin

    3. High auxin and low cytokinin

    4. Low auxin and low cytokinin

  3. In aroid plant the temperature of inflorescence rise around 8 − 10oC as compare to plant during maturation. It is due to activity of

    1. Dehydrogenase

    2. Cytochrome oxidase

    3. Alternate oxidase

    4. Peroxidase

  4. Which of the metabolite in nitrate assimilation is not located in the chloroplast?

    1. Glutamine

    2. Nitrite

    3. Uric acid

    4. Xanthin

  5. If bird is kept is a closed cage that all external clues are blocked then what would be effect on its biological clock

    1. No effect

    2. It will lag behind to small level

    3. It will be random

    4. It will stop functioning

  6. Serum contains

    1. Non-fibrinogen proteins, minerals and glucose

    2. Cells corpuscles, mineral and glucose

    3. Cell corpuscles, minerals and non-fibrinogen proteins

    4. Minerals and glucose

  7. Main function of sweating is

    1. Thermoregulation of body

    2. Excrete salt

    3. Maintenance of blood volume

    4. Osmoregulation of body

  8. Glucose is never seen in urine because it is mainly absorbed by

    1. Proximal tubule

    2. Collecting duct

    3. Ascending loop of Henle

    4. Clucose never enter into Bowman's capsule

  9. Among the following which would be most suitable market for selection of animals with agronomic traits

    1. RFLP

    2. RAPD

    3. EST

    4. Minisattelite

  10. Suppose a chromosal aberration ina chromosome A B C D E F G leads to A B C D E F G C D F E G. The probable reason is

    1. Duplication and followed by EF inversion

    2. Duplication followed by pericentric inversion

    3. Only duplication

    4. Only Inversion

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