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प्रश्न
In what ways is fertilisation in a plant similar to fertilisation in a human?
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उत्तर
The process of fertilisation is similar in plants and humans as both involve male and female gametes and show internal fertilisation.
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संबंधित प्रश्न
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
Mature ovary forms the ______.
Fill in the following blank with suitable word :
Pollen grains contain ............ gametes of a plant.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.
Multiple choice question. Tick (✓) the correct choice:
Unisexual flowers are found in
- mulberry
- mustard
- pea
- sunflower
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
State whether the following statement is true (T) or false (F):
Flowers which possess stamens and carpel are called unisexual.
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
What is phototropism?
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Pollen tube reaches the embryo sac via style.
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
Gloriosa superba exhibits ______.
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
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Double fertilization is essential for formation of ______.
In a plant flower the female whorl is ______.
What are the agents for pollination?
