Question

Which is the mode of reproduction in amoeba?
A. Binary fission only
B. Binary fission and multiple fission
C. Binary fission and conjugation
D. Multiple fission only

Answer 1

Hint:- Amoeba is a unicellular eukaryotic organism that releases their cellular waste by the process of exocytosis, where contractile vacuoles merge with the cell membrane and excrete wastes in the environment. The amoeba has an ability to alter its shape with the help of their pseudopods.

Complete step-by-step solution:-Multiple fission is a type of asexual reproduction in which multiple daughter cells are produced from single parents. The binary fission is a type of asexual reproduction in which two daughter cells are produced from single parents.
The amoeba reproduces through binary as well as multiple fission. Binary fission is a type of cell division, in which cells increase in size and then divide to form the new cells. Multiple fission is the process where the nuclei present in the parent cell divides numerous times for the production of several nuclei. This cyst-like structure breaks into offspring later.
Thus, the correct option is (B). Binary fission and multiple fission.

Additional information: Asexual reproduction is a form of reproduction that does not require the fusion of gametes. It requires only one parent. The offspring, which originates from asexual reproduction, is identical to the parent plant.
Clones are described as genetically identical organisms. They are produced through an asexual mode of reproduction. The process requires only one parent, and therefore, genetic variations do not occur.

Note:- The main difference between asexual and sexual reproduction is:
In sexual reproduction, two parents involve, whereas, in asexual reproduction, only a single parent involves. The species which reproduce by sexual reproduction have a more chance of survival. It is because sexual reproduction creates diversity in species, so there is a resistance capacity against the disease found.