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प्रश्न
Bisexual : Hibiscus : : Unisexual : ___________
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उत्तर
Bisexual : Hibiscus : : Unisexual : Papaya
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संबंधित प्रश्न
A student was asked to observe and identify the various parts of an embryo of a red kidney bean seed. He identified the parts and listed them as under:
I. Tegmen
II. Testa
III. Cotyledon
IV. Radicle
V. Plumule
The correctly identified parts among these are
(A) I, II and III
(B) II, III and IV
(C) III, IV and V
(D) I, III, IV and V
A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
Explain what you understand by sexual reproduction.
The reproductive part of a plant is the ______.
Mature ovary forms the ______.
Name the swollen lower part of the carpel.
What is the function of a flower?
What is the name of female part of a flower?
Fill in the following blank with suitable word :
Flowering plants reproduce by ...........method of reproduction.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
What is meant by ‘unisexual flowers’?
Which of the following is the correct sequence of events of sexual reproduction in a flower?
(a) pollination, fertilisation, seed, embryo
(b) seed, embryo, fertilisation, pollination
(c) pollination, fertilisation, embryo, seed
(d) embryo, seed, pollination, fertilisation
In what ways is fertilisation in a plant similar to fertilisation in a human?
In what ways is fertilisation in a plant different from fertilisation in a human?
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Fill in the blanks:
A stamen consists of ______ and ________.
Mention the function of Flower.
Mention the function of Anther.
Sketch the labelled diagram.
Flower with its sexual reproductive organs.
Mention pollination types.
Draw a diagram of the longitudinal section of a flower and label the following parts.
Answer the following question.
How does suitable pollination lead to fertilization?
Pollen grains are formed by _________ division in locules of anthers.
Calyx : Sepals : : Corolla : ________________
Distinguish between self-pollination and cross-pollination.
Observe the figure below. Write functions of the labelled parts.
Identify the parts A, B, C, and D?
In which part of the flower germination of pollen grains takes place?
Antipodal cells are present towards the ______ in an anatropous ovule.
Which type of development is observed in male gametophytes of plants?
Flowers showing ornithophily show few characteristic like ______.
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 ______.
Give any two examples of agents of pollination.
What are the agents for pollination?
Explain the post fertilization changes that occur in the ovary of a flower.
