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प्रश्न
Which of the following types require pollinator but the result is genetically similar to autogamy?
पर्याय
Geitonogamy
Xenogamy
Apogamy
Cleistogamy
उत्तर
Geitonogamy
Explanation:
It is functionally similar to cross-pollination as it involves pollinating agents, but it cannot bring about genetic variations and is only of ecological significance, e.g., Cucurbita maxima. It is similar to autogamy, as pollen grains come from the same plant.
संबंधित प्रश्न
Draw a diagram of DNA showing genes.
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 |
What is the basic difference between asexual reproduction and sexual reproduction?
Match the organisms given in column I with the methods of reproduction/propagation given in column II :
| Column I | Column II | |
| (i) Plasmodium | (a) Spore formation | |
| (ii) Spirogyra | (b) Leaves | |
| (iii) Jasmine | (c) Regeneration | |
| (iv) Apple tree | (d) Budding | |
| (v) Bryophyllum | (e) Binary fission | |
| (vi) Potatoes | (f) Layering | |
| (vii) Rhizopus | (g) Fragmentation | |
| (viii) Hydra | (h) Tubers | |
| (ix) Planaria | (i) Cuttings | |
| (x) Leishmania | (j) Multiple fission | |
| (xi) Sugar cane | (k) Grafting | |
| (xii) Rose |
The protozoan having a flagellum at its one end is :
(a) Amoeba
(b) Paramecium
(c) Hydra
(d) Leishmania
In the list of organisms given below, those which reproduce by the asexual method are :
(i) banana
(ii) yak
(iii) yeast
(iv) Amoeba
(a) (ii) and (iv)
(b) (i), (iii) and (iv)
(c) (i) and (iv)
(d) (ii), (iii) and (iv)
Name two animals which undergo external fertilisation.
Name two animals which undergo internal fertilisation?
State whether the following statement is true (T) or false (F):
Producing life is called respiration.
Find the odd-one out, giving reason.
Gamete, budding, fragmentation, regeneration.
List any two different forms asexual reproduction.
Multiple choice question.
Insect pollinated flowers usually posses ______
Multiple choice question.
In ovule, meiosis occurs in ______
Sporoderm is made up of ______.
What is hilum with respect to ovule?
What is the function of inner cell mass?
Assertion and Reason types of Question.
Assertion: Corm is a condensed form of Bulb.
Reason: It has dry and fleshy scale leaves.
Which of the following statements about reproduction in humans is correct?
Choose the correct meaning of reproduction.
