← Back to Botany

Sexual Reproduction In Flowering Plants

247 Questions Start Allen Test
All Exams Allen Errorless
Q201 Allen 11. ANALYTICAL QUESTIONS MCQ
Wind pollinated flowers are :-
A.
Small, producing nectar and dry pollen
B.
Small, brightly coloured, producing large number of pollen grains
C.
Small, producing large number of dry pollen grains
D.
Large, producing abundant nectar and pollen
Q202 Allen 11. ANALYTICAL QUESTIONS MCQ
The anterior end of pollen tube burst by the process of\_\_\_in embryo sac:-
A.
Imbibition
B.
Exosmosis
C.
Enzymatic action
D.
Endosomosis
Q203 Allen 11. ANALYTICAL QUESTIONS MCQ
In angiosperms Haploid, diploid and triploid conditions respectively can be traced in :-
A.
Egg, Nucellus, Endosperm
B.
Antipodal, Egg, Endosperm
C.
Endosperm, Nucellus, Synergids
D.
Antipodal, Synergids & Integuments
Q204 Allen 11. ANALYTICAL QUESTIONS MCQ
If the leaf of Capsella has 46 number of chromosomes then how many chromosomes number will be there in endosperm :-
A.
46
B.
23
C.
69
D.
138
Q205 Allen 11. ANALYTICAL QUESTIONS MCQ
If the nucellus cell of an Angiosperm contains 24 chromosomes the number of chromosomes present in pollen grain, endosperm & embryo will be:-
A.
24, 36, 24
B.
12, 36, 24
C.
12, 24, 36
D.
24, 12, 12
Q206 Allen 11. ANALYTICAL QUESTIONS MCQ
In Angiosperm, if haploid number of chromosome is 12 then what will be the no. of chromosomes in integuments and synergids:-
A.
12, 12
B.
24, 12
C.
24, 24
D.
12, 24
Q207 Allen 11. ANALYTICAL QUESTIONS MCQ
In Angiosperm, if number of chromosomes in endosperm is 30, what will be the no. of chromosomes in nucellus :-
A.
15
B.
30
C.
20
D.
40
Q208 Allen 11. ANALYTICAL QUESTIONS MCQ
How many meiotic divisions are necessary for the formation of 100 functional megaspores:-
A.
25
B.
50
C.
100
D.
200
Q209 Allen 11. ANALYTICAL QUESTIONS MCQ
The seeds of which type of plant have no dormancy:-
A.
Xerophytes
B.
Mesophytes
C.
Halophytes and hydrophyte
D.
Mangroves
Q210 Allen 11. ANALYTICAL QUESTIONS MCQ
Identify the correct set of statements with respect to angiosperms:-
(a) A microsporophyll contains stigma, style and ovary
(b) All megaspores produced from megaspore mother cell take part in embryo sac formation.
(c) Hilum is the place where ovule joins with funicle
(d) Basal part of an ovule is represented as micropylar end
(e) Perisperm is present in black pepper.
A.
only c and e are correct
B.
a, b, c and e are correct
C.
c, d and e are correct
D.
only c is correct
Q211 Allen 11. ANALYTICAL QUESTIONS MCQ
Anemophily type of pollination is found in :-
A.
Salvia
B.
Bottle brush
C.
Vallisneria
D.
Coconut
Q212 Allen 11. ANALYTICAL QUESTIONS MCQ
In grass what happens in microspore mother cell for the formation of mature pollen grain:-
A.
One meiotic and two mitotic divisions
B.
One meiotic and one mitotic division
C.
One meiotic division only
D.
One mitotic division only
Q213 Allen 11. ANALYTICAL QUESTIONS MCQ
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
A.
16
B.
24
C.
32
D.
8
Q214 Allen 11. ANALYTICAL QUESTIONS MCQ
When a diploid female plant is crossed with a tetraploid male plant, the ploidy of endosperm cells in the resulting seed will be:-
A.
Pentaploid
B.
Diploid
C.
Triploid
D.
Tetraploid
Q215 Allen 11. ANALYTICAL QUESTIONS MCQ
If diploid female plant is crossed with tetra ploid male plant. What would be ploidy level of seed coat: -
A.
3n
B.
n
C.
2n
D.
4n
[
Q216 Allen 11. ANALYTICAL QUESTIONS MCQ
Perispermic and endospermic seeds are found in :-
A.
Castor
B.
Maize
C.
Wheat
D.
Rice
Q217 Allen 11. ANALYTICAL QUESTIONS MCQ
Double fertilization involves: -
A.
Fertilization of the egg by two male gametes
B.
Fertilization of two eggs in the same embryosac by two sperms brought by one pollen tube
C.
Fertilization of the egg and the central cell by two sperms (male gametes) brought by different pollen tubes
D.
Fertilization of the egg and the central cell by two sperms (male gametes) brought by the same pollen tube
Q218 Allen 11. ANALYTICAL QUESTIONS MCQ
The arrangement of the nuclei in a normal embryo sac in the dicot plants is:-
A.
2 + 4 + 2
B.
3 + 2 + 3
C.
2 + 3 + 3
D.
3 + 3 + 2
Q219 Allen 11. ANALYTICAL QUESTIONS MCQ
Which part of the reproductive structure produces both enzyme & hormone :-
A.
Archesporium
B.
Middle layer
C.
Tapetum
D.
Endothecium
Q220 Allen 11. ANALYTICAL QUESTIONS MCQ
Ubisch bodies are produced in :-
A.
Embryosac
B.
Endothecium
C.
Pollen grain
D.
Tapetum
Q221 Allen 11. ANALYTICAL QUESTIONS MCQ
Tapetum is :-
A.
Parietal in origin and is the inner most layer of anther wall.
B.
Modified endothecium of anther wall
C.
Outer most layer of sporogenous tissue modification
D.
Parietal in origin and is the inner most layer of ovule wall
Q222 Allen 11. ANALYTICAL QUESTIONS MCQ
Ubisch bodies are associated with the development of :-
A.
Embryo
B.
Pollen grains
C.
Endosperm
D.
Embryo sac
Q223 Allen 11. ANALYTICAL QUESTIONS MCQ
Identify the correct set of statements for angiosperms:-
(a) Development of angiosperm seed occur inside the ovary / fruit
(b) Typical embryo sac in angiosperms is seven celled and eight nucleated
(c) Free nuclear divisions occur during embryogenesis in angiosperms
(d) Filliform apparatus present in ovule secrets chemicals, which attract pollen tube toward synergids
(e) Development of female gametophyte in typical angiosperms is monosporic. Choose the correct answer from the given options below.
A.
a, d and e
B.
b, d and e
C.
a, b, d and e
D.
b, c, d and e
Q224 Allen 11. ANALYTICAL QUESTIONS MCQ
How many cells or nuclei are present in mature male gametophyte of Capsella :-
A.
One
B.
Two
C.
Three
D.
Many
Q225 Allen 11. ANALYTICAL QUESTIONS MCQ
Which one of the following is resistant to enzyme action?
A.
Pollen exine
B.
Leaf cuticle
C.
Cork
D.
Wood fibre