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Q.102 Which of the following is false ?<br />
I. Endosperm formation starts prior to first<br />
division of zygote<br />
II. In angiospermic plants endosperm is mostly<br />
3N while gymnospermic is N<br />
III. The most common type of endosperm in<br />
angiosperms is nuclear type<br />
IV. Coconut has both liquid nuclear<br />
(multinucleate) and cellular endosperm.<br />
V. Single cotyledon of monocots embryo is<br />
represented by epiblast.<br />
(1) I and II only (2) III only<br />
(3) V only (4) II, V only<br />
Q.103 The number of chromosomes in radicle is 16.<br />
What will be the number of chromosomes in tube<br />
nucleus, antipodal cells, Proembryo and<br />
endosperm respectively ?<br />
(1) 8, 8, 16, 24 (2) 8, 8, 16, 16<br />
(3) 16, 16, 32, 48 (4) 8, 8, 16, 46<br />
Q.104 Select the correct sequence from the following<br />
I. Juvenile phase → Senescent phase →<br />
Reproductive phase<br />
II. Juvenile phase → Reproductive phase →<br />
Senescent phase<br />
III. Reproductive phase → Juvenile phase →<br />
Senescent phase<br />
IV. Vegetative phase → Reproductive phase →<br />
Senescent phase<br />
(1) I and II (2) I and IV<br />
(3) III and IV (4) II and IV<br />
Q.105 Select correct statements about mechanism of<br />
enzymes action<br />
I. Lowering the activation energy<br />
II. Competitive inhibitions are irreversible<br />
III. Isoenzymes acts on different substreates<br />
IV. Enzyme with high km value posses high rate<br />
of reaction<br />
V. Product may inhibits enzyme action<br />
reversiblely<br />
(1) I and V (2) I and III<br />
(3) II, III, IV (4) III and IV<br />
Q.102 fuEu esa ls dkSulk vlR; gS ?<br />
I. Hkwz.kiks"k dk cuuk tk;xksV ds izFke foHkktu ls<br />
igys izkjEHk gks tkrk gSA<br />
II. vko`Ùkchth;ksa dk Hkzw.kiks"k] lkekU;r;k 3N<br />
tcfd vuko`rchth;ksa dk N gksrk gSA<br />
III. vko`Ùkchth;ksa esa lcls vf/kd lkekU; izdkj dk<br />
Hkzw.kiks"k dSUnzdh; izdkj dk gksrk gSA<br />
IV. ukfj;y esa nksuksa nzo dsUnzdh; ¼cgqdsUnzdh;½<br />
,oa dksf'kdh; Hkzw.kiks"k gksrk gSA<br />
V. ,dchti=kh Hkqz.k dk ,dy chti=k vf/kdksjd<br />
}kjk izLrqr fd;k tkrk gSA<br />
(1) dsoy I ,oa II (2) dsoy III<br />
(3) dsoy V (4) dsoy II o V<br />
Q.103 ,d ewykadqj esa xq.klw=kksa dh la[;k 16 gSA Øe'k%<br />
ufydk dsUnzd] izfreq[kh dksf'kdk] izkdHkzq.k ,oa<br />
Hkzw.kiks"k esa xq.klw=k la[;k D;k gksxh] ?<br />
(1) 8, 8, 16, 24 (2) 8, 8, 16, 16<br />
(3) 16, 16, 32, 48 (4) 8, 8, 16, 46<br />
Q.104 fuEu esa ls lgh Øe dk p;u dhft;s<br />
I. fd'kksj voLFkk → izkS
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