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प्रश्न
Bisexual : Hibiscus : : Unisexual : ___________
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उत्तर
Bisexual : Hibiscus : : Unisexual : Papaya
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संबंधित प्रश्न
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
State the name of the functional unit concerned with sexual reproduction.
Name the part made up of the stigma, style and ovary.
Name the male part of the flower.
Where are a plant's sex organs located?
What is the name of female organ of a flower (other than carpel)?
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
How does pollination occur?
Which among the following statements are true for unisexual flowers?
(i) They possess both stamen and pistil
(ii) They possess either stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual flower possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (i), (iii) and (iv)
The correct sequence of reproductive stages occurring in flowering plants is ______.
In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
Mention the function of Flower.
What part is played by stamens and carpels in reproduction?
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
The students of a class were asked by the teacher to study the different parts of an embryo of an angiosperm. Given below are the essential steps for the experiment :
A. Soak the seeds in plain water and keep them overnight.
B. Cut open the soaked seed and observe its different parts.
C. Take some healthy seeds in a petri-dish.
D. 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) C, A, D, B
(b) C, D, A, B
(c) A, C, D, B
(d) A, C, B, D
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
List any two differences between pollination and fertilization.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
__________ is present in unisexual flower.
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Explain the sexual reproduction process in plants with a diagram.
In which part of the flower germination of pollen grains takes place?
Generally, in a pollen tube, which of the following moves to the tip of the tube?
How many middle layers are generally present in the wall of the anther lobes?
The 3-celled egg apparatus at the micropylar end comprises of ______
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 ______.
Pollen grains are produced by ______
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
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
State the number of sets of chromosomes present in a zygote.
Double fertilization is exhibited by ______
Sketch and label the essential and accessory whorls of flower.
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
The pollen tube usually enters the embryo sac ______.
