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प्रश्न
If diploid chromosome number in a flowering plant is 12, then which one of the following will have 6 chromosomes?
पर्याय
Endosperm
Leaf cells
Cotyledons
Synergids
उत्तर
Synergids
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संबंधित प्रश्न
What is DNA?
Where is DNA found in a cell ?
State the importance of DNA copying.
Amoeba reproduces by budding.
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 |
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What is meant by reproduction?
What are the two general methods of reproduction in organisms?
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(a) a fusion of specialised cells
(b) a method by which all types of organisms reproduce
(c) a method producing genetically identical offspring
(d) a method in which more than one parent are involved
In asexual reproduction, two offsprings having the same genetic material and the same body features are called :
(a) callus
(b) twins
(c) clones
(d) chromosomes
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Producing life is called respiration.
State whether the following statement is true (T) or false (F):
Dogs and cats reproduce from two parents.
Write the full form of DNA.
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The number of meiotic and mitotic divisions necessary for development of female gametophyte in angiosperms is ______.
Planaria reproduces asexually by ______.
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Give reason for the following:
All multicellular organisms cannot give rise to new individuals through fragmentation or regeneration.
