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Q.67 In a dihybrid test cross if parental types exceed
the recombination type among the resulting
progeny, it is due to -
(1) linkage (2) complete linkage
(3) Independent assortment (4) complementation
Q.68 It is advantageous to store food in the form of
polysaccharides because -
(1) of loss of H2O molecule on polymerization
(2) They are insoluble in water and are easily
storable
(3) can be easily hydrolysed by enzymes in case
of need
(4) All of the above
Q.69 The trait represented by dark square and circles
in the following pedigree chart inherited through
a single domiant gene. Calculate the probability
of the trait appearing in the offspring if the
following causing shoud marry
(i) III–1 × III–3
(ii) III–2 × III–4
I
II
1 2
1 2
3 4
III
1 2
3
(1) (i) 0%, (ii) 50% offspring
(2) (i) 50% offspring, (ii) 0%
(3) (i) 0%, (ii) 100% female offspring
(4) Both (1) and (3)
Q.70 In tomato genotype aabbcc produced 100 gm
tomatoes and AABBCC produced 136 gm
tomatoes.Which of the following options
correctly represent the weight of tomatoes in the
parents and progeny of the cross Aabbcc ×
aaBBcc respectively ?
(1) 112g, 124g, 118g, 106g
(2) 106g, 112g
(3) 118g, 124g
(4) 118g, 106g
4
Q.67 ,d f}ladj ijh{k.k Øksl }kjk mRiUu larfr esa ;fn
iwoZt izdkj iqu%la;kstu izdkj ls vf/kd gks rksA
bldk dkj.k gS -
(1) lgyXurk (2) iw.kZ lgyXurk
(3) Lora=k viO;wgu (4) dEIyhesUVs'ku
Q.68 ;g ykHknk;d gS Hkkstu dks iksyh lsdsjkbM ds :Ik
esa laxzg.k djuk D;kasfd -
(1) iksyhejkbts'ku ij H2O v.kq dh gkfu
(2) ;s ty esa v?kqyu'khy gksrs gS ,oa vklkuh ls
laxzg.k fd;k tk ldrk gSA
(3) vko';drk iM+us ij fodjksa }kjk vklkuh ls
vi?kVu fd;s tk ldrk gSA
(4) mijksDr lHkh
Q.69 dkjd tks xgjs pkSdksj ,oa xksys }kjk n'kkZ;s x;s gS
fuEu oa'kkxfr pkVZ esa ,d ,dy izHkkoh thu ds }kjk
n'kkZ;s x;s gSA ;fn fuEu n'kkZ;s x;s dk fookg dj
fn;k tkrk gS rks mijksDr dkjdksa dh laHkkouk dh
x.kuk dhft;sA
(i) III–1 × III–3
(ii) III–2 × III–4
I
1 2
1 2
III
1 2
3
(1) (i) 0%, (ii) 50% larfr
(2) (i) 50% larfr, (ii) 0%
(3) (i) 0%, (ii) 100% eknk larfr
(4) nksuksa (1) ,oa (3)
3 4
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II
Q.70 VekVj esa thuksVkbi aabbcc ls 100 xzke VekVj dk
mRiknu gqvk ,oa AABBCC ls 136 xzke VekVj dk
mRiknu gqvkA fuEu esa ls dkSulk fodYi ladj.k
Aabbcc × aaBBcc dh larfr ,oa iS=kdksa ls fdrus
VekVjksa dk mRiknu gksrk gS] Øe'k%
(1) 112g, 124g, 118g, 106g
(2) 106g, 112g
(3) 118g, 124g
(4) 118g, 106g
4