Solapur University
B.Sc. – III (Biotechnology) (Semester – V) Examination, 2015
PLANT DEVELOPMENT
Day and Date : Wednesday, 8-4-2015 Max. Marks : 50
Time : 3.00 p.m. to 5.00 p.m.
N.B. : i) All questions are compulsory.
ii) Draw neat labelled diagram wherever necessary.
1. Rewrite the following sentences by choosing correct alternatives : 10
1) The pollen tube discharges its content in _____________
a) the egg b) one of the synergids
c) the central cell d) one of the antipodal cells
2) Pollination effected by wind is called _________
a) ornithopily b) anemopily c) entomopily d) hydropily
3) The development of embryo from the cell of integuments is known as
__________
a) apogamy b) apospory
c) parthenogenesis d) adventive embryo
4) _________ amino acid is the precursor of growth hormone indole acetic acid.
a) alanine b) tryptophan c) valine d) trypsine
5) Growth hormone producing apical dominance is _________
a) auxin b) gibberellins c) ethylene d) cytokinin
6) Hormone pair required for a callus to differentiate are ___________
a) auxin and cytokinin b) auxin andethylene
c) auxin and abscisic acid d) cytokinin and gibberellins
7) Photoperiodism is perhaps is due to the synthesis of ___________
a) Florigen b) Auxins
c) Cytokinin d) Gibberellins
SLR-M – 56
8) Phytochrome becomes active in ______________
a) green light b) blue light
c) red-far red light d) none of these
9) The RNA is the genetic material of TMV was discovered by __________
a) Gierere and Schramm b) Lindemann
c) Lwoff and Tournter d) Diener and Rayner
10) The number of camsomeres present in the capsid of TMV is _________
a) 1230 b) 3120 c) 2300 d) 2130
2. Attempt any five of the following : 10
1) Structure of 2,4-D.
2) Integuments.
3) Synergid cell.
4) Capsomere.
5) What is biodiveristy ?
6) What is apomixis ?
3. a) Attempt any two of the following : 6
1) Mention causes of polyembryony.
2) Applications of auxins.
3) What is role of florigen ?
b) Give an account on loss of biodiversity. 4
4. Attempt any two of the following : 10
i) Write in brief on development of male gametophytes.
ii) Write an essay on somatic embryogenesis.
iii) Explain the chemical method of protoplast isolation.
5. Attempt any two of the following : 10
1) Explain the mechanism of flower patterning.
2) Write an essay on TMV.
3) Describe the process of embryo development in monocot.
B.Sc. – III (Biotechnology) (Semester – V) Examination, 2015
PLANT DEVELOPMENT
Day and Date : Wednesday, 8-4-2015 Max. Marks : 50
Time : 3.00 p.m. to 5.00 p.m.
N.B. : i) All questions are compulsory.
ii) Draw neat labelled diagram wherever necessary.
1. Rewrite the following sentences by choosing correct alternatives : 10
1) The pollen tube discharges its content in _____________
a) the egg b) one of the synergids
c) the central cell d) one of the antipodal cells
2) Pollination effected by wind is called _________
a) ornithopily b) anemopily c) entomopily d) hydropily
3) The development of embryo from the cell of integuments is known as
__________
a) apogamy b) apospory
c) parthenogenesis d) adventive embryo
4) _________ amino acid is the precursor of growth hormone indole acetic acid.
a) alanine b) tryptophan c) valine d) trypsine
5) Growth hormone producing apical dominance is _________
a) auxin b) gibberellins c) ethylene d) cytokinin
6) Hormone pair required for a callus to differentiate are ___________
a) auxin and cytokinin b) auxin andethylene
c) auxin and abscisic acid d) cytokinin and gibberellins
7) Photoperiodism is perhaps is due to the synthesis of ___________
a) Florigen b) Auxins
c) Cytokinin d) Gibberellins
SLR-M – 56
8) Phytochrome becomes active in ______________
a) green light b) blue light
c) red-far red light d) none of these
9) The RNA is the genetic material of TMV was discovered by __________
a) Gierere and Schramm b) Lindemann
c) Lwoff and Tournter d) Diener and Rayner
10) The number of camsomeres present in the capsid of TMV is _________
a) 1230 b) 3120 c) 2300 d) 2130
2. Attempt any five of the following : 10
1) Structure of 2,4-D.
2) Integuments.
3) Synergid cell.
4) Capsomere.
5) What is biodiveristy ?
6) What is apomixis ?
3. a) Attempt any two of the following : 6
1) Mention causes of polyembryony.
2) Applications of auxins.
3) What is role of florigen ?
b) Give an account on loss of biodiversity. 4
4. Attempt any two of the following : 10
i) Write in brief on development of male gametophytes.
ii) Write an essay on somatic embryogenesis.
iii) Explain the chemical method of protoplast isolation.
5. Attempt any two of the following : 10
1) Explain the mechanism of flower patterning.
2) Write an essay on TMV.
3) Describe the process of embryo development in monocot.
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