Biology Today — December 2017

(Steven Felgate) #1
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  1. The larval form that is characteristic of Ophiuroidea. (12)

  2. A functional coding sequence that codes for part or all of the gene
    product and is expressed in processed RNA. (4)

  3. A carotenoid pigment that imparts red colour to tomatoes and
    chillies. (8)

  4. The rhythmic throbbing of arteries produced by the regular
    contractions of the heart. (5)

  5. A taxonomical aid used in identifying organisms by selecting and
    eliminating from a list of characters. (3)

  6. A plant disease characterised by black fungal spores in the cereal
    crops. (4)

  7. The modern horse that arose in Pleistocene epoch about ten lakh
    years ago in North America. (5)

  8. Sterile hybrid offspring obtained when female ass is crossed with
    stallion. (5)

  9. A disease characterised by accumulation of uric acid crystals in
    synovial joints. (4)
    


ACROSS



  1. A process that involves the fusion of gametes
    produced by the same parent. (8)

  2. The position of a species within an ecological
    community that includes physical environment to
    which it has adapted. (5)

  3. Fungus used for the treatment of migraine,
    enlarged prostate gland and uterine haemorrhage
    after child birth. (5)

  4. The type of muscle that contracts to bend a limb at
    a joint. (6)

  5. A series of acidic dyes used with haematoxylin for
    colouring tissue smears and sections of animal
    tissues. (5)

  6. The flora and fauna occurring at the bottom of a
    sea or lake. (7)

  7. A slit-like aperture that opens the pharynx into the
    larynx and serves as the space for vocal cords. (7)

  8. A compound widely used by scientists to study cell
    physiology of islets of Langerhans. (7)

  9. The red variety of sea onion that produces a
    radicide which does not have any harmful effect
    on animals. (6)

  10. Phycocolloid extracted from Laminaria and used as
    an emulsifying agent. (5)

  11. A fixed position that is occupied by a gene or one
    of its allele on a chromosome. (5)

  12. The procedure of removal of bitterness from the
    leaves of tea, tobacco, coffee beans and cocoa
    with the help of Bacillus megaterium. (6)

  13. Chitinous, short external bristles produced by the epidermal cells
    of earthworm that are used to grip the soil. (5)

  14. A microelement that helps in transport of carbohydrates through
    phloem and synthesis of proteins and nucleic acids. (5)

  15. The scientist who discovered a simple method of cell division
    “amitosis” in 1855. (5)

  16. The most abundant protein of the animal world. (8)
    DOWN

  17. A dark brown debris formed from moss and marshy plants and
    used as fuel and manure. (4)

  18. A hard sharp protective outgrowth of stem or leaves that lacks
    vascular bundles. (8)

  19. A condition in which more than one embryo develop in a seed. (12)

  20. The broad, protective zone of tissue lying between epidermis and
    endodermis in stem. (6)

  21. The upper lip in the mouthparts of cockroach that holds food
    particles during feeding. (6)


28

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(^5689)
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16 17
(^1920)
21 22 23
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