Advertisements
Advertisements
Question
Which among the following statements are true for sexual reproduction in flowering plants?
- It requires two types of gametes
- Fertilisation is a compulsory event
- It always results in formation of zygote
- Offspring formed are clones
Options
(i) and (iv)
(i), (ii) and (iv)
(i), (ii) and (iii)
(i), (ii) and (iv)
Advertisements
Solution
(i), (ii) and (iii)
Explanation -
During sexual reproduction in flowering plants, male and female gametes fuse to form a zygote. This process is known as fertilisation. So, out of the given four statements, (i), (ii) and (iii) are true.
APPEARS IN
RELATED QUESTIONS
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?

Name the parts labelled as A, B, C and D in the diagram given below:

"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
The anther contains ______.
Fill in the following blank with suitable word :
Flowering plants reproduce by ...........method of reproduction.
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
What is made in ovary of a flower?
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
A student is asked to study the different parts of an embryo of pea seeds. Given below are the essential steps for the experiment :
(I) Soak the pea seeds in plain water and keep them overnight.
(II) Cut open the soaked seed and observe its different parts.
(III) Take some pea seeds in a petri dish.
(IV) Drain the excess water. Cover the seeds with a wet cotton cloth and leave them as it is for a day.
The correct sequence of these steps is
(A) III, I, IV, II
(B) III, IV, I, II
(C) III, I, II, IV
(D) III, II, I, IV
In the figure, the parts marked A, B and C are sequentially:

(A) Plumule, Radicle and Cotyledon
(B) Radicle, Plumule and Cotyledon
(C) Plumule, Cotyledon and Radicle
(D) Radicle, Cotyledon and Plumule
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
Pollen tube reaches the embryo sac via style.
Define.
Inflorescence
Observe the figure below. Write functions of the labelled parts.

How many middle layers are generally present in the wall of the anther lobes?
Length of pollen tube depends on the distance between ______
Which out of the following processes does not lead to the formation of clones.
Which among the following statements are true for unisexual flowers?
- They possess both stamen and pistil
- They possess either stamen or pistil
- They exhibit cross pollination
- Unisexual flowers possessing only stamens cannot produce fruits
Double fertilization is essential for formation of ______.
What is the structural unit of sexual reproduction in plant?
