Download NUMERICALS OF PLANT EMBRYOLOGY Q1. If a mature sex cell of

NUMERICALS OF PLANT EMBRYOLOGY
Q1. If a mature sex cell of species “A” contains 4 chromosomes,each body cell of the same species
of higher plant will contain(Species-“A”]ds ,d ifjiDo ySfa xd dksf’kdk esa ;fn xq.klw= dh la[;k
4 gS] rks mlh tkfr ds mPp ikS/ks ds body cell]esa xq.klw= dh [a[;k D;k gksxh\ )
Q.2. The number of chromosomes present in the leaf tip cells of a plant species having 6
chromosomes in each of the four cells of its pollen tetrad would be(],d ikS/ks ds ijkx prq"Bd ds
IkzR;sd dksf’kdk esa 6 xq.klw= gS]rks ml ikS/ks ds leaf tip cell]esa xq.klw= dh la[;k D;k gksxh\)
Q.3. If the cells of a lily plant contain 2n number of chromosomes, its endosperm will have(];fn
fyyh ikS/ks ds dksf’kdk esa xq.klw= dh la[;k 2n]gS] rks mlds ,.MksLieZ esa xq.klw= dh [a[;k
D;k gksxh\)
Q.4. If an endosperm cell of an angiosperm contains 24 chromosomes, then what will be
chromosome number in following cells(];fn ,d iq"ih; ikS/ks ds ,.MksLieZ esa xq.klw= dh la[;k
24 gS] rks fu0fy0 dksf’kdk esa xq.klw= dh la[;k D;k gksxh\ ) Root tip cell, Nucellus, Generative
cell, Parenchymatous cell, secondary nucleus, Xylem fibre, Intine, Pollen, MMC, Antipodal ,Synergid,
Male gamete, Egg cell, polar nucleus, Cuticle, Mature sieve tube, Integu- -- mentary cell, Passage
cell, cork cell, funiculus cell )
Q.5. How many meiosis divisions are necessary to produce 200 grains of wheat(]xsgwW esa 200 nkus
cuus ds fy;s dqy fdrus v/kZlw=h foHkktu dh vko’;drk gksxh\)
Q.6. Chromosome number in gynoecium is 12, then the number in endosperm will be (]tk;kax esa
xq.klw= dh la[;k 12 gS]rks ,.MksLieZ esa xq.klw= dh la[;k D;k gksxh\ )
Q.7. Under normal conditions of the development of male and female gametophytes in typical dicot
plant,when there is complete success in pollination and fertilization,how many divisions are required
for the formation of 100 zygotes from MMC & MMC?(],d Ikzk:fid f}xhti=h ikS/ks esa lkekU;
n”k ds vUrZxr ij o eknk xSfeVksQkbV dk fodkl gksrk gS] bl ikS/ks ds MMC & MMC]ls 100
tk;xksV cuus ds fy;s dqy fdrus foHkktu dh vko’;drk gksxh\)
Q.8. The number of meiosis needed to produce 100 seeds in Cyperus is(]lk;isjl esa 100 cht
cuus ds fy;s dqy fdrus v/kZlw=h foHkktu dh vko’;drk gksxh\)
Q.9. If the phloem parenchyma of a plant has 20 chromosomes, how many chromosomes shall be
present in its root tips cells (];fn ,d ikS/ks ds ¶yks,e iSjsUdk;ek esa xq.klw= dh la[;k 20 gS] rks
mlds leaf tip cell]esa xq.klw= dh la[;k D;k gksxh]\)
Q.10. If the root pith cells of a plant has 20 chromoso—
-- mes,how many chromosomes shall be present in the nucellus of its vegetatively produce plant
(];fn ,d ikS/ks ds tM+ dh fiFk dksf”dk esa xq.klw= dh la[;k 20 gS]rks mlls o/khZ :ils
mRiUu ikS/ks ds chtk.MdkW; dksf”dk esa xq.klw= dh la[;k D;k gksxh\ )
Q.11. A plant has 40 chromosome in its secondary nucleus. What would be the chromosome number
in the nucellus of its apogamously formed sporophyte?(,d ikS/ks ds f}rh;d dsUnzd esa 40 xq.klw=
gS]mlls ,iksxe
S h:ils mRiUu LiksjksQkbV ds chtk.Mdk; dh dksf’kdkvksa esa xq.klw= dh la[;k D;k
gksxh\)
Q.12. A student counts 40 chromosome at the anaphase of a dividing nucellar cell in plant-“A”. It
shows apospory.The new gametophyte, after fertilization by a normal pollen forms a new plant-“B”.
What shall be the chromosome in the young tapetal cell of the anther of the new plant- “B”.(]ikS/kk&
A]ds fcHkktu’khy chtk.Mdk; dksf’kdk ds ,ukQst voLFkk esa ,d fo|kFkhZ 40 xq.klw= fxurk
gSA;g ,iksLiksjh Ikznf’kZr djrk gSAu;k xsfeVksQkbV] lkekU; ijkxd.k ls fuÔsfpr djds u;k
ikS/kk& B] cukrk gSArks bl u;s ikS/ks ds ,UFkj ds r:.k VsihVe dksf’kdk esa xq.klw= dh
la[;k D;k] gskxh\ )
Q.13. A plant has 20 chromosomes in the nucellus.What Would be the chromosome number in the
leaf tip cells of its apogamously produced sporophyte?(],d ikS/ks ds chtk.Mdk; esa 20 xq.klw=
gS]rks mlls ,iksxSeh }kjk mRikfnr LiksjksQkbV ds i.kZ vxzLFk dksf”dk esa xq.klw= dh la[;k
D;k gksxh\)
Q.14. A plant has 20 chromosome in its polar nucleus.What Would be the chromosome number in the
root tip cells of its parthenogenitically produced sporophyte(],d ikS/ks ds /kzqoh; dsUnzd esa 20
xq.klw= gS]blls vfuÔsdtuu }kjk mRiUu LiksjksQkbV ds root tip cells]esa xq.klw= dh la[;k D;k
gksxh\)
Q.15. Ten flower present in the inflorescence of mustard plant; each microsporangia has 10 MMC; for
the formation of Male gametes in all flowers, how many divisions are necessary (],d ljlksa ikS/ks ds
iq"iØe esa 10 iq"Ik gS] IkzR;sd y?kqchtk.kq/kkuh esa 10 MMC] gS] bu lHkh iq"iks Eska uj xSehV~l
cuus rd dqy fdrus foHkktu dh vko’;drk gksxh\)
Q.16. A plant has 20 chromosomes in its endothecium.What would be the chromosome number in
the nucellus of the plant which has been formed from the parent plant following apospory and a
normal fertilization of the gametophyte?(],d ikS/ks ds ,.MksfFkfl;e esa 20 xq.klw= gSA
a ikS/ks dh
chtk.Mdk; esa xq.klw= la[;k D;k gksxh ftldk fuekZ.k
Tud ikS/ks ls vichtk.kqdrk vkSj xSfeVksQkbV ds lkekU; fuÔspu ds I’pkr~ gksrk gS\)
Q.17. A plant “A” has 40 chromosomes on the metaphase spindle of a vegetative cell.It forms a
female gametophyte aposporously.which on fertilization by a normal pollen shows formation of a new
plant “B”.What will be the chromosome number in the megaspore mother cell of the plant “B”.(]ikS/ks
“A” ] esa ,d o/khZ dksf”dk dh esVkQst rdqZ ij 40 xq.klw= gSA;g vichtk.kqrk }kjk eknk
xSfeVksQkbV cukrh gS’tks lmekU; ijkxd.k }kjk fuÔspu ij u;k ikS/kk “B” ]cukrh gSAikS/ks
“B” ] dh esxkLiksj ekr` dksf”dk esa xq.klw= dh la[;k D;k gksxh\ )
Q.18. How many meiotic division are needed to produce 100 seeds?( ]100 cht cuus ds fy;s
dqy fdrus v/kZlw=h foHkktu dh vko’;drk gksxh\ )
Q.19. If an angiosperm male plant is diploid and the female plant is a tetraploid, the ploidy level of
endosperm will be (];fn ,d uj iq"ih; ikS/kk f}xqf.kr gS rFkk eknk ikS/kk
prqZxqf.kr gS]buls fodflr gksus okys ikS/ks ds ,.MksLieZ dh xqf.krk Lrj D;k gksxh\)
Q.20. An angiosperms,how many MMC are required to produce 100 pollen grains (],d iq"ih; ikS/ks
es 100 ijkxd.k cuus ds fy;s fdrus MMC]dh vko’;drk gksxh\ )
( No..1;Botany Tuition of C.G.)