CSIR Paper 2 Life Science Questions (Part 5 of 10)

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  1. Among the following which graph reprsent correct relationship between intrinsic rate of growth ‘R'and generation time't’

  2. Among the following which is not a result of acid rain

    1. Low amount of phosphate availability

    2. Low amount of aluminium availability

    3. Low availability of nutrients to plant

    4. Increased acidity of soil

  3. Organ identity genes are responsible for correct positioning of floral organs on floral meristem. Mutation in them will lead to

    1. Loss of organs from certain whorls

    2. More number of organs in certain whorls

    3. Appearance of organs at incorrect positions

    4. No flower

  4. In hydra if any part is lost remaining portion repattern itself and give rise to complete organism. Such a pattern of development is termed as

    1. Epimorphosis

    2. Morphallaxis

    3. Regenration

    4. Healing

  5. Generally organism tends to remain in realized niche. Under what condition realized niche can be greater than fundamental niche

    1. Abundance of resources

    2. Heterogeneity of resources

    3. One species helping other in utiliztion of resources

    4. Moving of organism from source to new sink area

  6. According to survival of fittest concept of natural selection one species out compete other species. Under such condition not wo species can co-exist in same niche but more than one species can live in same niche under condition

    1. Abundant resources

    2. High competition

    3. Marginal Overlapping

    4. utilization of different resources

  7. The inbreeding coefficient of offspring on marriage between brother and sister sibling will be

    1. 0.5

    2. 0.05

    3. 0.25

    4. 0.75

  8. Which would be suitable for constructing the genomic library 70 kb of DNA

    1. YAC

    2. BAC

    3. P1 based vector

    4. Cosmid

  9. If we want to obtain glycosylated protein from microbe. Suitable choice will be

    1. Bacteria

    2. Yeast

    3. Mycoplasma

    4. Animal Cell

  10. Glycosylation of protein occurs in

    1. ER

    2. Golgi

    3. Mitochondria

    4. Nucleus

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