Biology today

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9. A lymphocyte present in thymus. (9)


10. The geological period in which conifers originated. (7)


11. Substances which are incapable of inducing antibody
    formation by themselves. (7)


12. A wall or covering of pollen grain. (9)


13. A recombinant protein used for prevention of blood
    clots. (6)


14. Folding of leaves in response to darkness. (10)


15. A hinder free part of the soft palate freely hangs down as a
    small flap. (5)


16. A green cattle food stored in a silo. (6)


17. A bone which lies just above the larynx and does not
    articulate with any other bone. (5)


18. Oldest cereal crop. (6)
    

ACROSS

2. A dried latex of unripe capsular fruits of poppy
   plant. (5)


3. A sweeten nutrient medium prior to alcoholic
   fermentation. (4)


4. Regeneration of whole body of an organism from a
   small fragment. (12)


5. The part of a plant stem from which one or more
   leaves arise. (4)


6. Another name for pig. (3)


7. An institute which has developed an oral
   contraceptive Saheli for females. (4)


8. A modern horse which arose from Pliohippus in
   Pleistocene epoch. (5)


9. An insecticide obtained from red variety of sea
   onion. (6)


10. A homogentisic acid, which occurs in urine as
    a result of incomplete oxidation of tyrosine and
    phenylalanine. (8)


11. A protein hormone which is secreted by Sertoli cells
    and suppresses FSH synthesis. (7)


12. A soil water which is available to plants. (8)


13. A plasma expander used in blood transfusions. (7)


14. A psychotropic drugs group which induces sleep. (8)


15. A type of pollination which is carried out by snails. (11)

DOWN

1. A menstrual disorder marked by absence of menstruation.
   (10)


2. An amino acid which is useful in maintaining osmotic and
   water potential in plants. (7)


3. A tree that grow in saline coastal area. (8)


4. A group of morphologically and genetically similar
   organisms. (5)


5. A drug used to cure impotency. (6)


6. First transgenic cow. (5)

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