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Sexual Reproduction In Flowering Plants

554 Questions Start Allen Test
All Exams Allen Errorless
Q276 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Which of the following types of embryo sac is mostly found in Angiosperm?
A.
Bisporic polygonum type
B.
Tetrasporic type
C.
Monosporic - onagrad type
D.
Monosporic - polygonum type
Q277 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Endosperm is consumed by developing embryo in the seed of :-
A.
Pea
B.
Maize
C.
Coconut
D.
Castor
Q278 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Floriculture is related with :-
A.
Rearing of Bees
B.
Embryo culture
C.
Tissue culture
D.
Cultivation of flower
Q279 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Nucellus is :-
A.
Haploid
B.
Polyploid
C.
Diploid
D.
Triploid
Q280 Allen FEMALE REPRODUCTIVE ORGAN MCQ
That haploid cell which divides by mitosis to form embryo sac is :-
A.
Megaspore mother cell
B.
Microspore mother cell
C.
Functional megaspore
D.
Non functional megaspore
Q281 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Embryo sac is represented by :-
A.
Megagametophyte
B.
Megasporophyll
C.
Microgametes
D.
Megaspore
Q282 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Angiosperms have covered seeds due to presence of :-
A.
Stamen
B.
Ovary
C.
Megasporophyll
D.
Pollen sac
Q283 Allen FEMALE REPRODUCTIVE ORGAN MCQ
The gynoecium consists of many free pistils in flowers of :-
A.
Papaver
B.
Michelia
C.
Aloe
D.
Tomato
Q284 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Which structure of the ovule is diploid:-
A.
Nucellus
B.
Integuments
C.
Sec. nucleus
D.
All of the above
Q285 Allen FEMALE REPRODUCTIVE ORGAN MCQ
In angiosperms, functional megaspore develops into :-
A.
Pollen sac
B.
Embryo sac
C.
Ovule
D.
Endosperm
Q286 Allen FEMALE REPRODUCTIVE ORGAN MCQ
Filiform apparatus is a characteristic feature of:
A.
Suspensor
B.
Egg
C.
Synergid
D.
Zygote
Q287 Allen POLLINATION MCQ
Which type of growth movement is found in pollen tube?
A.
Geotropic
B.
Chemotropic
C.
Hydrotropic
D.
Chemotactic
Q288 Allen POLLINATION MCQ
When pollen grains of a flower are transferred to stigma of another flower of a different plant, the process is called:-
A.
Geitonogamy
B.
Xenogamy
C.
Autogamy
D.
Homogamy
Q289 Allen POLLINATION MCQ
Autogamy means:-
A.
Transfer of pollen from anthers to stigma of the same flowers
B.
Transfer of pollen from one flowers to another on the different plant
C.
Occurrence of male and female sex organ in the same flowers
D.
Germination of pollen
Q290 Allen POLLINATION MCQ
Maize is best example of :-
A.
Anemophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Q291 Allen POLLINATION MCQ
Which of the following promotes pollen germination and tube growth?
A.
Starch
B.
Boron
C.
Calcium
D.
Potassium RCDNEN
Q292 Allen POLLINATION MCQ
Example of Epihydrophily is :-
A.
Vallisneria
B.
Zostera
C.
Nelumbium
D.
Hydrilla
Q293 Allen POLLINATION MCQ
Pollination in Yucca plant takes place by :ā€“
A.
Honey bee
B.
Butter fly
C.
Pronuba moth
D.
Bird
Q294 Allen POLLINATION MCQ
In Angiosperms pollen tube liberate their male gametes into the :-
A.
Central cell
B.
Antipodal cells
C.
Egg cell
D.
Synergid
Q295 Allen POLLINATION MCQ
When the pollens of one flower falls on the stigma of another flower of the same plant then genetically it is known as :-
A.
Cleistogamy
B.
Allogamy
C.
Autogamy
D.
Dichogamy
Q296 Allen POLLINATION MCQ
Entry of pollen tube through micropyle is called:-
A.
Porogamy
B.
Syngamy
C.
Chalazogamy
D.
Mesogamy
Q297 Allen POLLINATION MCQ
Select the odd statement regarding insect pollinated flowers?
A.
Flowers are large, colourful, fragrant
B.
Pollen grains are sticky
C.
Most of entomophilous plants are ornamental
D.
Most of insect pollination occurs by moth.
Q298 Allen POLLINATION MCQ
In which one of the following pollination is autogamous ?
A.
Geitonogamy
B.
Xenogamy
C.
Chasmogamy
D.
Cleistogamy
Q299 Allen POLLINATION MCQ
Even in absence of pollinating agents seedsetting is assured in :-
A.
Salvia
B.
Fig (3) Commellina
D.
Zostera
Q300 Allen POLLINATION MCQ
Plants with ovaries having only one or a few ovules, are generally pollinated by :-
A.
Birds
B.
Wind
C.
Bees
D.
Butterflies