Q.1
on 211 Which if the following has the least pollen viability?
  • a) Cereals like wheat and rice
  • b) Members of Rosaceae
  • c) Members of Leguminosae
  • 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?
  • a) 6: 1: 0
  • b) 6: 0: 1
  • c) 3: 1: 3
  • 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?
  • a) 48,000
  • b) 24,000
  • c) 10,000
  • d) 4,000
Q.4
on 214 In Nutmeg, aril is developed from:
  • a) Integument
  • b) Hilum
  • c) Raphae
  • d) Funicle
Q.5
on 215 Essential temperature for the growth of pollen tube:
  • a) 15 – 20 ºC
  • b) 15 – 25 ºC
  • c) 20 - 30ºC
  • d) 25 – 40 ºC
Q.6
on 216 Monosporic/polygonum type of embryo sac was discovered by:
  • a) Amici
  • b) Panchanan Maheshwari
  • c) Strasburger
  • d) Nawaschin
Q.7
on 217 The embryo sac is produced from
  • a) Microscope
  • b) Zygote
  • c) Egg cell
  • d) Megaspore
Q.8
on 218 Ovule is attached to the placenta by
  • a) pedical
  • b) Hilum
  • c) Funicle
  • d) petiole
Q.9
on 219 An anther is also called
  • a) Sporangium
  • b) Megasporangium
  • c) Microsporangium
  • d) Stamen
Q.10
on 220 Two male gametes are
  • a) produced before pollination
  • b) Haploid
  • c) Diploid
  • d) At the time of pollination
Q.11
on 221 Style is ... ..
  • a) a is delicate hollow tube
  • b) a tough hollow tube
  • c) a delicate filament
  • d) called pollen tube
Q.12
on 222 In the flowering plants, male and female gametes both are
  • a) Motile
  • b) Non-motile
  • c) Diploid
  • d) Very large
Q.13
on 223 A sterile region present between stigma and ovary is called
  • a) Pollen tube
  • b) Style
  • c) Filament
  • d) Suspensor
Q.14
on 224 The pollen tube usually enters the female gametophyte
  • a) through one of the synergids
  • b) by directly penetrating the egg
  • c) between one synergid and central cell
  • d) by knocking off the antipodal cell
Q.15
on 225 A proximal sterile part of the stamen is called
  • a) Style
  • b) Connective
  • c) Anther
  • d) Filament
Q.16
on 226 Which one of the following floats in the cytoplasm of the vegetative cell ?
  • a) Male gamete
  • b) Generatic cell
  • c) Female gamete
  • d) Microspore
Q.17
on 227 The intine of a pollen grain is made up of
  • a) Lignin and suberin
  • b) Pectin and cellulose
  • c) Lignin and Hemicellulose
  • d) Pectin and callose
Q.18
on 228 Suspensor is produced from
  • a) Apical cell
  • b) Small upper basal cell
  • c) large lower basal cell
  • d) Hypophysis
Q.19
on 229 Cross pollination is normally
  • a) not beneficial
  • b) harmful
  • c) more beneficial
  • d) rarely seen
Q.20
on 230 Pollen tube, entering in embryo sac has
  • a) 3 male gametes
  • b) 1 male gametes
  • c) 2 male gametes
  • d) 4 male gametes
Q.21
on 231 A microspore is a
  • a) Male gamate
  • b) First cell of male gametophyte
  • c) Last cell of male gametophyte
  • d) Diploid cell
Q.22
on 232 Identify the correct statement regarding Commelina:
  • a) It is strictly unisexual
  • b) It possesses upper chasmogamous and lower cleistogamous flowers
  • c) It possesses lower chasmogamous and upper cleistogamous flowers
  • 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.
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion
  • c) Assertion is true but Reason is false
  • 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?
  • a) Camerarius
  • b) Nawaschin
  • c) Strasburger
  • d) P. Maheshwari
Q.25
on 235 In a type of apomixis known as adventive embryony, embryos develop directly from the:
  • a) Zygote
  • b) Nucellus or integuments
  • c) Synergids or antipodals in an embryo sac
  • d) Accessory embryo sac in the ovule
Q.26
on 236 Double fertilization involves:
  • a) fertilization of the egg by two male gametes
  • b) fertilization of two eggs in the same embryo sac by two sperms brought by one pollen tube
  • c) fertilization of the egg and the central cell by two sperms brought by different pollen tubes
  • 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:
  • a) Wind
  • b) Water
  • c) Bees
  • d) Birds
Q.28
on 238 The anther wall between epidermis and middle layers is:
  • a) Endothecium
  • b) Tapetum
  • c) Archesporium
  • d) Parietal layer
Q.29
on 239 If pollination takes place between the two flowers of same plant, it is known as:
  • a) Xenogamy
  • b) Cleistogamy
  • c) Geitonogamy
  • d) Herkogamy
Q.30
on 240 Which of the following is wrong?
  • a) The viability of pollen grains of rosaceae and solanaceae is about one month
  • b) Aristolochia plant has all five types of pollen tetrads
  • c) Male gametes are formed by meiotic division through generative cell
  • d) Development of male gametophyte is precocious or in situ in angiosperms
Q.31
on 241 Intine of pollen is composed of:
  • c) Pectin and cellulose
  • a) Cellulose
  • b) Sporopollenin and pectin
  • d) Sporopollenin, cellulose and pectin
Q.32
on 242 Select the incorrect statement:
  • a) Cleistogamy do not favours inbreeding depressions
  • b) Commelina and Viola bears both cleistogamous and chasmogamous flowers
  • c) Cleistogamous flowers can produce seeds even in the absence of pollinators
  • d) Cleistogamy is disadvantageous in respect to no further development of variations in offsprings
Q.33
on 243 Cleistogamous flowers are:
  • a) Strictly unisexual
  • b) Strictly bisexual and geocarpic
  • c) Monoecious and geocarpic
  • d) Strictly dioecious, bisexual and geocarpic
Q.34
on 244 . Aril is:
  • a) Modified second integument
  • b) Modified third integument
  • c) Modified funicle
  • d) Modified nucellus
Q.35
on 245 Which among the following statements is wrong about Sporogenesis in the anther and ovule?
  • a) Archesporium in an anther is hypodermal in position and many celled
  • b) Archesporium initial undergoes mitosis before the meiosis
  • c) One ovary always possesses a single megasporangium on the placenta
  • 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?
  • a) One
  • b) Four
  • c) Many
  • d) Numerous
Q.37
on 247 The number of meiosis in an anther, anther locule, ovary and ovule are respectively:
  • a) Many, one, many, one
  • b) Many, Many, One – many, one
  • c) Many, one, One – Many, many
  • d) One – many, many, one, one – many
Q.38
on 248 Which among the following sentence is not correct about the anther wall layers?
  • a) Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus
  • b) The endothecium lies inner to epidermis and have hydrophilic thickenings on their radial walls
  • c) The middle layers are in between epidermis and endothecium
  • 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:
  • a) Pentaploidy
  • b) Diploidy
  • c) Triploidy
  • 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.
  • a) (i) and (ii)
  • b) (ii), (iv) and (v)
  • c) (iii), (iv) and (v)
  • 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.
  • a) Both (ii) and (iii)
  • b) Both (iv) and (v)
  • c) (i) only
  • d) (iii) only
Q.42
on 261 Out of megaspore tetrad, the functional megaspore is
  • a) Any megaspore
  • b) middle megaspore
  • c) Micropylar megaspore
  • d) Chalazal megaspore
Q.43
on 262 Tapetum provides
  • a) protection to embryo
  • b) Nourishment to pollen grains
  • c) Nourishment to embryo
  • d) Protection to endosperm
Q.44
on 263 In triple fusion, how many male gamete participate ?
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.45
on 264 The pedicel of the female flower coils after pollination in
  • a) Lotus
  • b) Hydrilla
  • c) Vallisneria
  • d) Trapa
Q.46
on 265 The asexual production of seed is called
  • a) Fragmentation
  • b) Apomixis
  • c) Self-fertilization
  • d) Dormancy
Q.47
on 266 Scatelum is
  • a) an endosperm
  • b) a seed coat
  • c) an embryo
  • d) a cotyledon
Q.48
on 267 . Endothecium in anther helps in
  • a) Dehiscence of anther
  • b) Nutrition to pollen
  • c) Germination of pollen
  • 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
  • a) Hypocotyl
  • b) Basal cell
  • c) Hypophysis
  • d) Terminal cell
Q.50
on 269 The formation of zygote without the act of syngamy is called
  • a) Poly embryony
  • b) Parthenogenesis
  • c) Budding
  • d) Apospory
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