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Subject: Biology, asked on 22/5/18

Unicellular asexual reproduction

Subject: Biology, asked on 15/5/18

Solve this:

62. The plants in desert, in order to tolerate water stress, have 
(1) Stipular spines 
(2) No stomata 
(3) Stems which are converted into leaf type 
(4) Long root system reach the water level 
 

Subject: Biology, asked on 15/5/18

Solve this:

55. Inflorescence, which begins as a dichasial cyme and ends in a monochasial cyme, is called ​
(1) Cyathium          (2) Biparous 
(3) Verticillaster     (4) Thyrsus

Subject: Biology, asked on 7/5/18

please explain this. if primary spermatocyte have 2n=16 chromosomes during first meiotic division, in such case hoe many chromatids could be present in each secondary spermatocyte? A)32  B)8  C)16  D)24

Subject: Biology, asked on 6/5/18

A : Cucurbits and coconuts are monoecious plants.
R : Cucurbits and coconuts bear unisexual flowers.

Subject: Biology, asked on 6/5/18

39. How many of the structures given in the box are the products of fertilization?
Conidia, Zygospore, Oospore, Oosphere, Zoospore, Sperm, Ovum.
(a) Seven              (b) Three              (c) Five                 (d) Two

40. Select the odd one out w.r.t. external fertilization :
(a) Amphibians      (b) Fishes           (c) Most algae       (d) Spirogyra

Subject: Biology, asked on 6/5/18

Q24. Read the following statements :
(i) The vegetative phase is of same duration in different organisms
(ii) Clear-cut vegetative, reproductive and senescent phases can be observed in monocarpic plants
(iii) Bambusa differs from Strobilanthus Kunthiana (Neela kuranji) in the length of juvenile phase and being monocarpic
(iv) The end of juvenile/ vegetative phase in angiosperms is seen when they come to flower 
(v) Sexual mode of reproduction is present in most animals
Which of the above statements are correct ?
(a) (ii), (iv) and (v)                  (b) (ii), (iii) and (iv) 
(c) (i), (ii) and (iii)                   ​(d) (i) and (ii)

 

Subject: Biology, asked on 6/5/18

Budding in yeasts finally produce new progenies. This method :
(a) Produces offsprings which can be called clones
(b) Is a type of asexual reproduction
(c) Is actually related to parthenogenesis
(d) Both (a) and (b)

Subject: Biology, asked on 5/5/18

i am a pcb student without maths. what are the exams i can give after 12th .medical and non medical both pls tell.

Subject: Biology, asked on 4/5/18

Assertion reason

Subject: Biology, asked on 16/4/18

How does chlamydospores spread and germinate??

Subject: Biology, asked on 13/4/18

Q37. Cell organelle taking part in photorespiration is
            (a) glyoxisome                            (b) peroxisome
            (c) dictyosome                            (d) ER

Subject: Biology, asked on 10/4/18

Pigment system 1 conducts
(a) cyclic photophosphorylation
(b) non-cyclic photophosphorylation
(c) both a and b
(d) none of the above

Subject: Biology, asked on 10/4/18

How rate of transpiration is reduced by decrease in light intensity?

Subject: Biology, asked on 10/4/18

Quantasomes are present in
(a)Pigment system 1
(b)Pigment system 2
(c)Both a and b
(d)none of the above

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