Back to SEXUAL REPRODUCTION IN FLOWERING PLANTS
Your Progress
0 / 179 Answered
0
Correct
0
Incorrect
0%
Accuracy
NEET • BIOLOGY • SEXUAL REPRODUCTION IN FLOWERING PLANTS
Sexual reproduction in flowering plants practice · Mixed difficulty
Try a question, then open “View answer” to check it. Sign in to submit answers and save progress.
Practice format and chapter quiz
The practice player uses single-correct-answer MCQs. Chapter quizzes help you review a topic; they are not full-length NEET mock papers.
Take a chapter quiz →
Showing 1-30 of 179 questions
1
Medium
1 of 179
Application
+4 | -1
How many meiotic divisions are required to produce 100 seeds in a typical flowering plant?
View answer and explanation
Correct option: D
125
Option D (125) is correct because each seed requires one meiosis for the egg and one for the pollen, and double fertilization requires two sperm cells.
2
Easy
2 of 179
Understanding
+4 | -1
Select the wrong pair.
View answer and explanation
Correct option: D
Tapetum cell – Haploid
The correct answer is D (Tapetum cell – Haploid) because tapetum cells are diploid or polyploid, not haploid, as they provide nourishment to developing pollen grains.
3
Easy
3 of 179
Remembering
+4 | -1
The body of ovule fuses with funicle in the region called
View answer and explanation
Correct option: B
Hilum
Option B (Hilum) is correct because the hilum is the point of attachment of the ovule to the funicle (seed stalk).
4
Easy
4 of 179
Understanding
+4 | -1
Gametophytes that develop from functional megaspore in gymnosperms and angiosperms is (respectively)
View answer and explanation
Correct option: D
Endosperm & Embryosac
The correct answer is D (Endosperm & Embryosac) because in gymnosperms, the female gametophyte develops into the endosperm before fertilization, while in angiosperms, it develops into the embryo sac.
5
Medium
5 of 179
Remembering
+4 | -1
Ornithophily refers to the pollination by which of the following?
View answer and explanation
Correct option: B
Birds
Option B (Birds) is correct because ornithophily specifically refers to pollination by birds.
6
Medium
6 of 179
Understanding
+4 | -1
Fruit and seed develops
View answer and explanation
Correct option: A
Simultaneously
Option A (Simultaneously) is correct because fruit and seed development are closely coordinated and occur concurrently after fertilization.
7
Medium
7 of 179
Understanding
+4 | -1
Identify the correct statement.
View answer and explanation
Correct option: D
Grafting is difficult in monocot plants as they have scattered vascular bundles
Option D (Grafting is difficult in monocot plants as they have scattered vascular bundles) is correct because the scattered vascular bundles in monocots make it difficult to establish vascular connections during grafting.
8
Easy
8 of 179
Understanding
+4 | -1
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are:
View answer and explanation
Correct option: A
Synergids, Zygote and Primary endosperm nucleus
Option A (Synergids, Zygote and Primary endosperm nucleus) is correct because synergids are haploid (n), the zygote is diploid (2n), and the primary endosperm nucleus is triploid (3n).
9
Medium
9 of 179
Understanding
+4 | -1
Identify the characters with reference to the plant in which eight nucleated embryo sac was first studied by strasburger.
I – Micropyle, chalaza and funiculus are arranged in the same vertical line
In the ovule.
II – presence of both unisexual and bisexual flowers in the same plant.
III – Filiform apparatus helps in conduction of food materials from
Endosperm to egg apparatus.
IV – Long funiculus coils like a watch spring around the ovule.
I – Micropyle, chalaza and funiculus are arranged in the same vertical line
In the ovule.
II – presence of both unisexual and bisexual flowers in the same plant.
III – Filiform apparatus helps in conduction of food materials from
Endosperm to egg apparatus.
IV – Long funiculus coils like a watch spring around the ovule.
View answer and explanation
Correct option: C
I and II
Option A (I and IV) is correct because Strasburger's plant study involved characteristics related to ovule structure and arrangement, as described in statements I and IV.
10
Medium
10 of 179
Application
+4 | -1
What would be the number of chromosomes of the aleurone cell of a plant with 42 chromosomes in its root tip cells?
View answer and explanation
Correct option: A
63
Option A (63) is correct because the aleurone cell is triploid (3n), and if root tip cells (2n) have 42 chromosomes, then the aleurone cell has (3/2) * 42 = 63 chromosomes.
11
Medium
11 of 179
Analyzing
+4 | -1
How many of the following statement is/are incorrect?
A) Nuclear type of endosperm is the rarest type of endosperm, in which the nucleus remains intact.
B) Cellular type of endosperm involves both karyokinesis and cytokinesis, simultaneously.
C) Cellular type of endosperm is found in coconut.
A) Nuclear type of endosperm is the rarest type of endosperm, in which the nucleus remains intact.
B) Cellular type of endosperm involves both karyokinesis and cytokinesis, simultaneously.
C) Cellular type of endosperm is found in coconut.
View answer and explanation
Correct option: B
Two
Option B (Two) is correct because two statements (A and C) are incorrect regarding the types of endosperm.
12
Hard
12 of 179
Remembering
+4 | -1
The persistent nucellus is a
View answer and explanation
Correct option: A
thin remaining layer of nucellus
Option A (thin remaining layer of nucellus) is correct because the perisperm is the remnant of the nucellus in some seeds.
13
Medium
13 of 179
Remembering
+4 | -1
True fruit is directly derived from
View answer and explanation
Correct option: D
None of the above
The correct answer is None of the above because a true fruit is derived from the ovary.
14
Medium
14 of 179
Understanding
+4 | -1
All of the given are true w.r.t. innermost wall layer of anther, except
View answer and explanation
Correct option: B
Helps in dehiscence of anther
Option B is correct because the tapetum's primary functions are nourishing the developing pollen grains and contributing to pollen wall formation, not anther dehiscence, which is primarily the role of the endothecium.
15
Medium
15 of 179
Remembering
+4 | -1
Perisprem is found in
View answer and explanation
Correct option: D
Both (a) and (c)
Option D (Both (a) and (c)) is correct because perisperm, the remnant of the nucellus, is found in black pepper and beet.
Explore Other Chapters in BIOLOGY
View All →
16
Medium
16 of 179
Understanding
+4 | -1
Cleistogamy ensures seed set formation. This is an advantage but still there are disadvantages too. One of the disadvantage is
View answer and explanation
Correct option: C
Genetic variations are limited in progeny
The correct answer is C (Genetic variations are limited in progeny) because cleistogamy, which is self-pollination within a closed flower, restricts genetic recombination and diversity.
17
Hard
17 of 179
Remembering
+4 | -1
Which of the following structure guides the entry of pollen tube into the embryo sac?
View answer and explanation
Correct option: C
Filiform apparatus of synergid cells
Correct Answer + Core Reason: Filiform apparatus of synergid cells. The filiform apparatus guides the pollen tube into the embryo sac by secreting chemoattractants.
18
Hard
18 of 179
Remembering
+4 | -1
The phenomenon wherein, the ovary develops into a fruit without fertilisation is called
View answer and explanation
Correct option: A
Parthenocarpy
The correct answer is A (Parthenocarpy) because parthenocarpy is specifically the development of fruit from the ovary without fertilization.
19
Medium
19 of 179
Analyzing
+4 | -1
Assertion: Coconut water represents the cellular endosperm and the surrounding white kernel represents the free-nuclear endosperm in Cocos nucifera.
Reason: PEN undergoes a number of free nuclear divisions all of which are subsequently followed by wall formation.
Reason: PEN undergoes a number of free nuclear divisions all of which are subsequently followed by wall formation.
View answer and explanation
Correct option: D
If both Assertion and Reason are false
Option D (If both Assertion and Reason are false) is correct because coconut water represents the free-nuclear endosperm, and the white kernel represents the cellular endosperm. The reason is also incorrect because wall formation does not always follow nuclear divisions.
20
Hard
20 of 179
Understanding
+4 | -1
Find out the correct statement w.r.t. ex-albuminous seeds
View answer and explanation
Correct option: A
Its endosperm is completely consumed during embryonic development
Option A (Its endosperm is completely consumed during embryonic development) is correct because ex-albuminous seeds lack endosperm at maturity.
21
Easy
21 of 179
Application
+4 | -1
If the number of chromosomes in endosperm of a dicot plant is 36, the root cell will contain
View answer and explanation
Correct option: C
24 chromosomes
Option C (24 chromosomes) is correct because the root cell is diploid (2n) and the endosperm cell is triploid (3n), so 3n = 36, therefore 2n = 24.
22
Easy
22 of 179
Application
+4 | -1
If endosperm has 36 number of chromosomes then find out the chromosome number of male and female gamete
View answer and explanation
Correct option: D
12, 12
Option D (12, 12) is correct because if the endosperm (3n) has 36 chromosomes, then the gametes (n) each have 12 chromosomes.
23
Medium
23 of 179
Analyzing
+4 | -1
(A): An insect visit to a flower always ensures cross pollination
(R): Insects visits the flower for nectar
(R): Insects visits the flower for nectar
View answer and explanation
Correct option: D
(A) is false but (R) is true
Option D ((A) is false but (R) is true) is correct because an insect visit does not always ensure cross-pollination (it can be self-pollination), but insects do visit flowers for nectar.
24
Hard
24 of 179
Understanding
+4 | -1
[A]: The pollen sterility has been attributed to the malfunctioning of tapetum.
[R]: Premature degeneration of the tapetum deprives the developing spores of its nutrition.
[R]: Premature degeneration of the tapetum deprives the developing spores of its nutrition.
View answer and explanation
Correct option: A
Both A and R are true and R is the correct explanation of A
Option A (Both A and R are true and R is the correct explanation of A) is correct because tapetum malfunctioning can lead to pollen sterility due to lack of nutrition.
25
Medium
25 of 179
Application
+4 | -1
Total number of meiotic division required for forming 100 zygotes/100 grains of wheat is
View answer and explanation
Correct option: C
125
Option C (125) is correct because 100 zygotes require 100 eggs (100 meiotic divisions in megasporogenesis) and 100 pollen grains, which require 25 meiotic divisions in microsporogenesis (since each meiotic division produces 4 pollen grains). Therefore, 100 + 25 = 125.
26
Hard
26 of 179
Understanding
+4 | -1
Hexaploid wheat 42 chromosomes the number of chromosomes in a synergid will be
View answer and explanation
Correct option: A
7
Option D (21) is correct because the synergid is a haploid cell (n) and in hexaploid wheat (2n = 42), n = 21.
27
Hard
27 of 179
Understanding
+4 | -1
In a flower, if the megaspore mother cell forms megaspores without undergoing meiosis and if one of the megaspores develops into an embryo sac, its nuclei would be
View answer and explanation
Correct option: B
Diploid
Option B (Diploid) is correct because if meiosis does not occur, the megaspores will have the same ploidy as the megaspore mother cell, which is diploid.
28
Easy
28 of 179
Understanding
+4 | -1
In flowering plants, what is the correct sequence of events that takes place in the intergumented
ovule?
a) Embryo sac formation
b) Megasporogenesis
c) Endosperm formation
d) Fertilization
e) Embryogenesis
ovule?
a) Embryo sac formation
b) Megasporogenesis
c) Endosperm formation
d) Fertilization
e) Embryogenesis
View answer and explanation
Correct option: B
b a d c e
Option B (b → a → d → c → e) is correct because megasporogenesis precedes embryo sac formation, which is followed by fertilization, endosperm formation, and finally embryogenesis.
29
Medium
29 of 179
Application
+4 | -1
If the endosperm of an angiosperm has 24 chromosomes, what would be the number of chromosomes in the megaspore mother cell of the same palnt?
View answer and explanation
Correct option: B
16
Option B (16) is correct because the megaspore mother cell is diploid (2n), and the endosperm in angiosperms is triploid (3n). Therefore, if 3n=24, then 2n=16.
30
Easy
30 of 179
Understanding
+4 | -1
All the following produce albuminous seeds except
View answer and explanation
Correct option: A
Bean
Option A (Bean) is correct because beans are non-albuminous or exalbuminous seeds, meaning they lack endosperm at maturity.
Revision notes and key takeaways
Review SEXUAL REPRODUCTION IN FLOWERING PLANTS in your textbook or class notes, then use this set to check your understanding.
Key Takeaways
- ✓ This set contains 179 single-correct-answer MCQs on SEXUAL REPRODUCTION IN FLOWERING PLANTS.
- ✓ Try each question before opening its answer. Read the explanation where one is available.
- ✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.
Showing 1-30 of 179 questions
Continue Your Practice
📚 Switch Set (ALL)
0
/179
0✓
0✗
0% Accuracy