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Subject: Biology, asked on 26/4/18

Both autogamy and geitonogamy are prevented in
(A) Papaya
(B) Cucumber
(C) Castor
(D) Maize

Subject: Biology, asked on 26/4/18

Solve this:

Subject: Biology, asked on 24/4/18

match the column 1 with 2
column 1                                column 2
a)ruminate endosperm        1)primula
b)aril                                       2)lythrum
​c)ategmic                              3)santalum
​d|)distyly                                4)annona  squamosa
​e)tristyly                                 5)asphodelus
 

Subject: Biology, asked on 24/4/18

the  number of pollen grains produced by each head inflorescnce of family asteraceae  which has 10 actinomorphic flowers if each anther produces 20 pollen grains ,options are    1)300   2)100   3)500   4)1000

Subject: Biology, asked on 17/4/18

Which of these is incorrectly matched with the features? A)fucus-thallus contains pneumatocysts B)pleurobrachia -no asexual reproduction C)chara- cell wall contains carrageenan D)trichoderma - no sexual reproduction

Subject: Biology, asked on 17/4/18

The flowers having anther and stigma are very closeto each other and undergo maturation at the same timings are found in a)coriander b)peepal c)oxalis d)mango

Subject: Biology, asked on 14/4/18

How is coconut water different from white coconut?

Subject: Biology, asked on 14/4/18

Why does the pollen grains of plants living in water contain a mucilagenous covering/sheath ?  ​​​​​​Exine layer of the pollen grain is already present which is tough and indestructible and is providing protection and preventing the pollen grain from getting wet. Then why ?

Subject: Biology, asked on 10/4/18

What do you mean by apogamy?

Subject: Biology, asked on 9/4/18

Solve qus no. 28
Q.28. The adult chordaic without persistent notochord is
(a) the ascidian
(b) the amphioxus
(c) the scoliodon
(d) Hagfish

Subject: Biology, asked on 8/4/18

47th one

​Q47. A flower of brinjal plant following the process of sexual reproduction produces 360 viable seeds. Answer the following questions giving reasons 

     (a) How many ovules are minimally involved ?

     (b) How many mega spore mother cells are involved?

     (c) What is the minimum number of pollen grains that must land on the stigma for pollination?

     (d) How many male gametes are involves in above case?

     (e) How many micro spore mother cells must have under reduction division prior to dehiscence of anther in the above case?

Subject: Biology, asked on 8/4/18

Draw a labelled diagram of anther lobe at microspore mother cell stage. Mention the role of different wall layers of anther.

Subject: Biology, asked on 8/4/18

Draw labelled mature stage of a dicotyledonous embryo

Subject: Biology, asked on 8/4/18

Draw a diagrammatic sectional view of a mature anatropous ovule and label the following parts in it i) that develops into a seed coat . ii) that develops into an embryo after fertilization . iii) that develops into an endosperm in an albuminous seed iv) through which the Pollen tube gains entry into the embryo sac v) that attaches of ovule to the placenta

Subject: Biology, asked on 8/4/18

myasthenia gravis involves weakening of skeletal muscles. which of the following can act as a primary treatment of it?
1) injection of neurotransmitter acetylcholine
2)injection of neurotransmitter adrenaline
3)injection of acetylcholinesterase inhibitor
4)taking protein and fat rich diet

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