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प्रश्न
Differentiate between the following:
Binary fission in amoeba and multiple fission in Plasmodium
उत्तर
| Binary fission in amoeba | Multiple fission |
| In binary fission of amoeba, the plane of division is hard to observe. The nucleoli disintegrates. The nucleus divides mitotically forming two nucleus. The cell constricts in middle, so the cytoplasm divides forming two daughter cells. | In Multiple fission of plasmodium, the oocyte or schizont divides into many similar daughter cells simultaneously. Nucleus undergoes repeated mitosis producing many nuclei without the division of cytoplasm. Later the cytoplasm divides & encircles each nucleus forming many daughter cells oocyte undergoes sporogony forming sporozoites. Schizont undergoes schizogony forming merozoites. |
संबंधित प्रश्न
Why do algae and fungi shift to sexual mode of reproduction just before the onset of adverse conditions?
Distinguish between asexual and sexual reproduction
Why is vegetative reproduction also considered as a type of asexual reproduction?
Give two suitable examples of vegetative propagation
List and describe any two vegetative propagules in flowering plants.
Name the vegetative propagules in the following
Bryophyllum
A Plant called X possesses small flower with reduced perianth and versatile anther. The probable agent for pollination would be
Consider the following statement(s)
- In Protandrous flowers, pistil matures earlier
- In Protogynous flowers, pistil matures earlier
- Herkogamy is noticed in unisexual flowers
- Distyle is present in Primula
Identify the correctly matched pair
Why are the offsprings of oviparous animal at a greater risk as compared to offsprings of viviparous organisms?
Sugarcane is propagated by ______.
Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because ______.
Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because ______.
The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because ______.
Which of the following statements is true of yeast?
Which of the following statements is true of Hydra?
Which of the following statements is true of Bryophyllum?
A population of genetically identical individuals, obtained from asexual reproduction is ______.
Vegetative propagation in mint occurs ______.
The structure of bilobed anther consists of ______
During free cell formation:
Chlamydomonas reproduce by ______.
Why do we refer to offspring formed by asexual method of reproduction as clones?
Although potato tuber is an underground plant part, it is considered as a stem. Give two reasons.
Is it possible to consider vegetative propagation observed in certain plants like Bryophyllum, water hyacinth, ginger etc., as a type of asexual reproduction? Give two/three reasons.
Draw the sketches of a zoospore and a conidium. Mention two dissimilarities between them and atleast one feature common to both structures.
