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प्रश्न
In vitro pollen germination and pollen tube elongation can be induced by ______.
विकल्प
Boric acid
Glucose
Lactose
Sucrose
उत्तर
In vitro pollen germination and pollen tube elongation can be induced by sucrose.
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संबंधित प्रश्न
State the importance of DNA copying.
Match items in Column I with those in Column II:
| Column I | Column II | ||
| (a) | Bud | (i) | Maple |
| (b) | Eyes | (ii) | Spirogyra |
| (c) | Fragmentation | (iii) | Yeast |
| (d) | Wings | (iv) | Bread mould |
| (e) | Spores | (v) | Potato |
| (vi) | Rose |
Name two animals which reproduce asexually.
Why are budding, fragmentation and regeneration, all considered to be asexual type of reproduction?
Fill in the following blank with suitable word :
the process of...........ensures continuity of life on earth.
What is the importance of DNA copying in reproduction? Explain with an example.
The protozoan having a flagellum at its one end is :
(a) Amoeba
(b) Paramecium
(c) Hydra
(d) Leishmania
Reproduction is essential for living organisms in order to ______
State whether the following statement is true (T) or false (F):
Dogs and cats reproduce from two parents.
Differentiate between the following:
Asexual reproduction and sexual reproduction.
Name the factors which take part in this process.
Which of the following types require pollinator but the result is genetically similar to autogamy?
Multiple choice question.
Which of these is the male reproductive organ in humans?
Self-incompatibility is found in flowers of plants _______.
Draw a well labelled diagram of the monocot seed you have studied.
The average period of pregnancy in human lasts for ______ days of pregnancy.
What is the use of tablet ‘Saheli’?
Why is vegetative propagation practiced for growing some type of plant?
Which of the following is diploid at the time of fertilization in a gametophyte of a normal angiosperm?
