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प्रश्न
The unicellular organisms which reproduce by binary fission are considered immortal. Justify.
उत्तर
In unicellular organisms during binary fission, the entire cell (organism) divides completely to form two daughter cells which later on develop into adult and the process goes on repeatedly during each division leading to immortality of cell (organism). Hence unicellular organisms like amoeba are ‘biologically immortal’.
संबंधित प्रश्न
Why do algae and fungi shift to sexual mode of reproduction just before the onset of adverse conditions?
Why is the offspring formed by asexual reproduction referred to as clones?
Why is vegetative reproduction also considered as a type of asexual reproduction?
Name the vegetative propagules in the following
Bryophyllum
State two advantages of vegetative propagation.
Identify the correctly matched pair
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
What is reproduction?
Differentiate between the following:
Binary fission in amoeba and multiple fission in Plasmodium
Differentiate between the following:
Budding in yeast and budding in Hydra
In which type of parthenogenesis are only males produced?
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
The term clone is used to describe such ______ and ______ similar individuals.
In protists and monerans, asexual reproduction occurs by ______.
The most significant feature of vegetative propagation is that ______.
Bryophyllum daigremontianum reproduces by ______.
______ refers to the process of asexual reproduction by multiplication of genetically identical copies of individual plants.
Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are ______.
Which of the following statements is true of yeast?
Which of the following statements is true of Bryophyllum?
Vegetative propagation in mint occurs ______.
Which one of the following is the correct match of the product and the producer?
Asexual reproduction involves ______
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.
