on 211 Which if the following has the least pollen viability?
71%
a) Cereals like wheat and rice
0%
b) Members of Rosaceae
12%
c) Members of Leguminosae
18%
d) Members of Solanaceae
Q.2.
on 212 In a fully organised polygonum type of embryo sac, what is the ratio of number of haploid to diploid to triploid nuclei?
54%
a) 6: 1: 0
0%
b) 6: 0: 1
46%
c) 3: 1: 3
0%
d) 3: 2: 2
Q.3.
on 213 There are 10 flowers in one individual plant of Crotalaria. In each microsporangium of every stamen of all the flowers, there are 300 microspore mother cells. How many pollen grains are formed from that plant?
59%
a) 48,000
12%
b) 24,000
18%
c) 10,000
12%
d) 4,000
Q.4.
on 214 In Nutmeg, aril is developed from:
23%
a) Integument
0%
b) Hilum
31%
c) Raphae
46%
d) Funicle
Q.5.
on 215 Essential temperature for the growth of pollen tube:
0%
a) 15 – 20 ºC
33%
b) 15 – 25 ºC
60%
c) 20 - 30ºC
7%
d) 25 – 40 ºC
Q.6.
on 216 Monosporic/polygonum type of embryo sac was discovered by:
0%
a) Amici
38%
b) Panchanan Maheshwari
54%
c) Strasburger
8%
d) Nawaschin
Q.7.
on 217 The embryo sac is produced from
7%
a) Microscope
21%
b) Zygote
14%
c) Egg cell
57%
d) Megaspore
Q.8.
on 218 Ovule is attached to the placenta by
0%
a) pedical
14%
b) Hilum
86%
c) Funicle
0%
d) petiole
Q.9.
on 219 An anther is also called
0%
a) Sporangium
20%
b) Megasporangium
67%
c) Microsporangium
13%
d) Stamen
Q.10.
on 220 Two male gametes are
23%
a) produced before pollination
54%
b) Haploid
15%
c) Diploid
8%
d) At the time of pollination
Q.11.
on 221 Style is ... ..
17%
a) a is delicate hollow tube
17%
b) a tough hollow tube
50%
c) a delicate filament
17%
d) called pollen tube
Q.12.
on 222 In the flowering plants, male and female gametes both are
15%
a) Motile
62%
b) Non-motile
23%
c) Diploid
0%
d) Very large
Q.13.
on 223 A sterile region present between stigma and ovary is called
0%
a) Pollen tube
46%
b) Style
38%
c) Filament
15%
d) Suspensor
Q.14.
on 224 The pollen tube usually enters the female gametophyte
58%
a) through one of the synergids
25%
b) by directly penetrating the egg
17%
c) between one synergid and central cell
0%
d) by knocking off the antipodal cell
Q.15.
on 225 A proximal sterile part of the stamen is called
8%
a) Style
17%
b) Connective
42%
c) Anther
33%
d) Filament
Q.16.
on 226 Which one of the following floats in the cytoplasm of the vegetative cell ?
0%
a) Male gamete
83%
b) Generatic cell
0%
c) Female gamete
17%
d) Microspore
Q.17.
on 227 The intine of a pollen grain is made up of
8%
a) Lignin and suberin
67%
b) Pectin and cellulose
0%
c) Lignin and Hemicellulose
25%
d) Pectin and callose
Q.18.
on 228 Suspensor is produced from
18%
a) Apical cell
55%
b) Small upper basal cell
9%
c) large lower basal cell
18%
d) Hypophysis
Q.19.
on 229 Cross pollination is normally
22%
a) not beneficial
0%
b) harmful
78%
c) more beneficial
0%
d) rarely seen
Q.20.
on 230 Pollen tube, entering in embryo sac has
11%
a) 3 male gametes
0%
b) 1 male gametes
89%
c) 2 male gametes
0%
d) 4 male gametes
Q.21.
on 231 A microspore is a
38%
a) Male gamate
62%
b) First cell of male gametophyte
0%
c) Last cell of male gametophyte
0%
d) Diploid cell
Q.22.
on 232 Identify the correct statement regarding Commelina:
0%
a) It is strictly unisexual
57%
b) It possesses upper chasmogamous and lower cleistogamous flowers
14%
c) It possesses lower chasmogamous and upper cleistogamous flowers
29%
d) The chasmogamous flowers are geocarpic with respect to cleistogamous flowers
Q.23.
on 233 Assertion: Multicarpellary syncarpous pistil is present in Papaver. Reason: Pistil is formed of only one carpel which is fused.
25%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
25%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion
50%
c) Assertion is true but Reason is false
0%
d) Both Assertion and Reason are false
Q.24.
on 234 Which scientist proposed anther is male sex organ and pistil is the female sex organ?
29%
a) Camerarius
57%
b) Nawaschin
0%
c) Strasburger
14%
d) P. Maheshwari
Q.25.
on 235 In a type of apomixis known as adventive embryony, embryos develop directly from the:
0%
a) Zygote
43%
b) Nucellus or integuments
43%
c) Synergids or antipodals in an embryo sac
14%
d) Accessory embryo sac in the ovule
Q.26.
on 236 Double fertilization involves:
0%
a) fertilization of the egg by two male gametes
33%
b) fertilization of two eggs in the same embryo sac by two sperms brought by one pollen tube
17%
c) fertilization of the egg and the central cell by two sperms brought by different pollen tubes
50%
d) fertilization of the egg and the central cell by two sperms brought by the same pollen tube
Q.27.
on 237 Consider the following features seen in a plant: I. Male and female reproductive organs are generally found in separate flowers. II. The male flowers having a number of long filaments terminating in exposed stamens. III. The female flowers having long, feather-like stigmas. The flowers of this plant would most likely be pollinated by:
71%
a) Wind
14%
b) Water
14%
c) Bees
0%
d) Birds
Q.28.
on 238 The anther wall between epidermis and middle layers is:
57%
a) Endothecium
29%
b) Tapetum
0%
c) Archesporium
14%
d) Parietal layer
Q.29.
on 239 If pollination takes place between the two flowers of same plant, it is known as:
40%
a) Xenogamy
20%
b) Cleistogamy
20%
c) Geitonogamy
20%
d) Herkogamy
Q.30.
on 240 Which of the following is wrong?
20%
a) The viability of pollen grains of rosaceae and solanaceae is about one month
20%
b) Aristolochia plant has all five types of pollen tetrads
40%
c) Male gametes are formed by meiotic division through generative cell
20%
d) Development of male gametophyte is precocious or in situ in angiosperms
Q.31.
on 241 Intine of pollen is composed of:
60%
c) Pectin and cellulose
0%
a) Cellulose
20%
b) Sporopollenin and pectin
20%
d) Sporopollenin, cellulose and pectin
Q.32.
on 242 Select the incorrect statement:
0%
a) Cleistogamy do not favours inbreeding depressions
0%
b) Commelina and Viola bears both cleistogamous and chasmogamous flowers
80%
c) Cleistogamous flowers can produce seeds even in the absence of pollinators
20%
d) Cleistogamy is disadvantageous in respect to no further development of variations in offsprings
Q.33.
on 243 Cleistogamous flowers are:
25%
a) Strictly unisexual
50%
b) Strictly bisexual and geocarpic
25%
c) Monoecious and geocarpic
0%
d) Strictly dioecious, bisexual and geocarpic
Q.34.
on 244 . Aril is:
20%
a) Modified second integument
40%
b) Modified third integument
40%
c) Modified funicle
0%
d) Modified nucellus
Q.35.
on 245 Which among the following statements is wrong about Sporogenesis in the anther and ovule?
20%
a) Archesporium in an anther is hypodermal in position and many celled
20%
b) Archesporium initial undergoes mitosis before the meiosis
40%
c) One ovary always possesses a single megasporangium on the placenta
20%
d) One ovule can have maximum four megaspores when one or more than one can develop into a female gametophyte
Q.36.
on 246 If the ovary of a flower possess basal placentation, what will be the number of meiosis in that ovary?
25%
a) One
50%
b) Four
0%
c) Many
25%
d) Numerous
Q.37.
on 247 The number of meiosis in an anther, anther locule, ovary and ovule are respectively:
50%
a) Many, one, many, one
50%
b) Many, Many, One – many, one
0%
c) Many, one, One – Many, many
0%
d) One – many, many, one, one – many
Q.38.
on 248 Which among the following sentence is not correct about the anther wall layers?
20%
a) Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus
60%
b) The endothecium lies inner to epidermis and have hydrophilic thickenings on their radial walls
20%
c) The middle layers are in between epidermis and endothecium
0%
d) A typical microsporangium is surrounded by four wall layers
Q.39.
on 249 When a diploid female parent is crossed with a Tetraploid male plant, the ploidy of the endosperm cells in the resulting seed is:
25%
a) Pentaploidy
50%
b) Diploidy
0%
c) Triploidy
25%
d) Tetraploidy
Q.40.
on 250 Read the following statements describing the type of cell division happening during the different embryological events in a flowering plant. Identify the correct statements: (i) During Sporogenesis, there is mitosis and meiosis. (ii) During gametogenesis, there is mitosis only. (iii) During embryogenesis, there is meiosis followed by mitosis. (iv) During gametogenesis, there is meiosis only. (v) During Sporogenesis, there is mitosis only.
75%
a) (i) and (ii)
25%
b) (ii), (iv) and (v)
0%
c) (iii), (iv) and (v)
0%
d) (iv) and (v)
Q.41.
on 251 Most advanced and common tapetum is: (i) Amoeboid tapetum. (ii) Invasive tapetum. (iii) Periplasmodial tapetum. (iv) Glandular tapetum. (v) Secretory tapetum.
75%
a) Both (ii) and (iii)
25%
b) Both (iv) and (v)
0%
c) (i) only
0%
d) (iii) only
Q.42.
on 261 Out of megaspore tetrad, the functional megaspore is
0%
a) Any megaspore
25%
b) middle megaspore
50%
c) Micropylar megaspore
25%
d) Chalazal megaspore
Q.43.
on 262 Tapetum provides
0%
a) protection to embryo
75%
b) Nourishment to pollen grains
25%
c) Nourishment to embryo
0%
d) Protection to endosperm
Q.44.
on 263 In triple fusion, how many male gamete participate ?
25%
a) 1
50%
b) 2
25%
c) 3
0%
d) 4
Q.45.
on 264 The pedicel of the female flower coils after pollination in
0%
a) Lotus
25%
b) Hydrilla
50%
c) Vallisneria
25%
d) Trapa
Q.46.
on 265 The asexual production of seed is called
0%
a) Fragmentation
75%
b) Apomixis
0%
c) Self-fertilization
25%
d) Dormancy
Q.47.
on 266 Scatelum is
25%
a) an endosperm
25%
b) a seed coat
0%
c) an embryo
50%
d) a cotyledon
Q.48.
on 267 . Endothecium in anther helps in
40%
a) Dehiscence of anther
40%
b) Nutrition to pollen
20%
c) Germination of pollen
0%
d) Formation of male gamete
Q.49.
on 268 The uppermost and largest cell of the suspensor which remains in contact with apical cells is called
40%
a) Hypocotyl
0%
b) Basal cell
60%
c) Hypophysis
0%
d) Terminal cell
Q.50.
on 269 The formation of zygote without the act of syngamy is called
0%
a) Poly embryony
80%
b) Parthenogenesis
0%
c) Budding
20%
d) Apospory
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