Question

Some organisms and their type of reproductions are given below. Find the correct alternative showing the correct pair-

a.	Paramecium	1.	Spore formation
b.	Hydra	2.	Budding
c.	Mucor	3.	Fission
d.	Spirogyra	4.	Fragmentation

A. a-1, b-2, c-3, d-4
B. a-3, b-4, c-2, d-1
C. a-2, b-3, c-4, d-1
D. a-3, b-2, c-1, d-4

Answer 1

Asexual reproduction is a process by which organisms produce replica of themselves without the transferring of genetic material to next organism via binary fission and budding. Sexual reproduction typically requires the sexual interaction of two specialized organisms.

Complete Answer:
To answer this question, first, we need to know about the reproduction of organisms. In one celled organisms and cell reproduction are alike, for the cell is the complete organism. In single cellular organisms those reproduce sexually, their gametes can be formed by separation or, as in yeasts, they modified themselves to a gamete and blend its nucleus with that of a nearest of the opposite sex, a process that is called conjugation. Multi celled organisms also reproduce asexually and sexually; asexual, or vegetative, reproduction can take a great variety of forms.

Now, let us find the solution from the option.
- Paramecium reproduced asexually by the fission. The organism usually formed a new cell by the method of binary fission where the parent cell separates to produce two new cells.
- Hydra reproduce asexually by budding. The mitotic division causes the formation of buds, after bud formation they get separated when they get matured.
- The mucor belongs to the fungal group, so they reproduce by the spore formation.
- Spirogyra is included in algae; they reproduce by the process of fragmentation. The filament started to increase in size and then detached to produce new fragments then they grew to new Spirogyra.

Thus, the correct option is D. i.e. a-3, b-2, c-1, d-4.

Note: Although organisms are often thought of only as adults, and reproduction is considered to be the formation of a new adult comparing the adult of the earlier generation, a living organism, in actuality, is an organism for its whole life cycle, from inseminated egg to adult, which not only for the single small portion of that cycle. Reproduction, in these terms, is not just a stage in the life history of an organism but the organism’s entire history.