Topic Mcqs on Double fertilization
Bold option are correct
1)
double fertilizaztion is speciality of ....
(a)angiosperm (b)gymnosperm () pteridophytes
2) it
is called so because...
(a)2male
(b) 2 male fused with egg and fusion of nucleus (c)4n is formed
3)
in male combine withfusion nucleus form......
(a)2n (b)
3n (c) 4n
4)
the process is initilized as.....
(a) pollination (b) seed (c) endosperm
5)
before the fertilization ovule contain nucleus....
(a) 2
(b) 4 (c)6
6)
after the fertilization ovule have nucleus.....
(a) 2
(b) 4 (c)8
7) two nucleus near the egg is called
.....
(a)
antipodal (b)
synergids (c) endosperm
8)
what is wrong about the fusion of nucleus ........
(a) fusion of nucleus are polar nuclei (b) is a female cell (c) after fusion nucleus becom 4n
9)
which is correct sentence about double fertilization.....
(a) it lack the formation of endosperm (b) it help plants economize its
food (c) one male gametes fuse
whith 2 cell
10)
zygote nucleus develop into..........
(a) ambryo
(b ) nutritive cell (c)
enospermic cell
11)
fertilized egg after secreting thin wall it form....
(a) oosphere
(b) oospore (c) zygot
12)
which sentence is wrong........
(a) oospore is first cell of gametophytes (b)oospre is first cell of
sporophytes (c )both
13)
oospore later devide into....
(a)syngnid and bassal supeior (b)basal superior and embryo cell (c) none
14)
process of xenia is .........
(a)effect the tissu on embryo
(b) effect the environment on formetion of embryo (c) both
15)
the process of meta xena is.......
(a) effect of pollen on pericarp (b) effect of pollen tube on formation
of embryo (c)none
16)
extra food is store in.....
(a) in seed (b) fruit pulp (c) zygot
17)
dicot is octant type......
(a) seed
(b)embryo (c) zygot
18)
embryo of dicot is.......
(a)
octant type (b)filamentous
type (c) dioloide type
19)
embryo of monocot is.........
(a) filamentous (b) octant (c) diploid
20) gram
is ..........
(a) endospermic seed (b) non endospermic (c) monocot
21) in non endospermic seed..........
(a) endosperm is present but small (b) not present (c) food is completely use for embryo
22)
the endo sperm formation
follows.......
(a)fertilization (b)seed coat formation (c)embryo development
23)
xania and meta xania is due to..........
(a)endospermic formation (b)seed
(c) double fertilization
24)
which is correct........
(a) fusion of second male gametes leads to free nucleus
division (b)serves as
safeguard against loss of enegy (c) both
25)
resurting triploid cells develop
into........
(a) pericarp
(b) seed (c)endosperm
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