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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?
List and describe any two vegetative propagules in flowering plants.
Name the vegetative propagules in the following
Bryophyllum
Give the biological name of the following:
Baker’s yeast
State two advantages of vegetative propagation.
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
The unicellular organisms which reproduce by binary fission are considered immortal. Justify.
The mode of reproduction in bacteria is by ______
In the following question, there are two statements. One is the assertion (A) and the other is reasoning (R). Mark the correct answer as
- Assertion: In-bee society, all the members are diploid except drones.
- Reason: Drones are produced by parthenogenesis.
A B C D
Asexual reproduction is common among ______.
In yeast cell division results in a small cell called ______.
The most significant feature of vegetative propagation is that ______.
Vegetative propagation in Pistia occurs by ______.
______ is not a method of vegetative propagation.
Sugarcane is propagated by ______.
______ refers to the process of asexual reproduction by multiplication of genetically identical copies of individual plants.
The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because ______.
Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are ______.
In which of the following pairs the plants can be vegetative propagated by leaf buds?
In ginger vegetative propagation occurs through ______.
The structure of bilobed anther consists of ______
Asexual reproduction involves ______
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.
Although sexual reproduction is a long drawn, energy-intensive complex form of reproduction, many groups of organisms in Kingdom Animalia and Plantae prefer this mode of reproduction. Give atleast three reasons for this.
