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Which of the following is true about binary fission in Amoeba?
It is a type of sexual reproduction.
It involves the formation of spores.
It is a form of asexual reproduction where the parent cell divides into two daughter cells.
It only occurs in multicellular organisms.
It is a form of asexual reproduction where the parent cell divides into two daughter cells.
Binary fission in Amoeba is a form of asexual reproduction where a single parent cell divides into two identical daughter cells. This process typically begins with the mitotic division of the nucleus (karyokinesis), followed by the division of the cytoplasm (cytokinesis).
Binary fission in Amoeba is a form of asexual reproduction where a single parent cell divides into two identical daughter cells. This process typically begins with the mitotic division of the nucleus (karyokinesis), followed by the division of the cytoplasm (cytokinesis).
Think of binary fission like photocopying a single document into two identical copies and then cutting the paper evenly down the middle to make two separate sheets.
B-F-2: Binary Fission produces 2 identical cells.
When an Amoeba reaches its maximum growth size, it undergoes binary fission as a survival and multiplication strategy. The genetic material (DNA) replicates first, and the nucleus elongates and pinches in the middle. Subsequently, the cell membrane constricts inwards, splitting the cytoplasm equally to yield two independent daughter amoebae.
Amoeba is a unicellular organism that reproduces asexually.
Binary fission involves both karyokinesis and cytokinesis.
The resulting daughter cells are genetically identical clones of the parent cell.
Enables rapid population growth under favorable conditions.
Does not require a mate, making it highly efficient.
Lack of genetic variation makes the population vulnerable to sudden environmental changes or diseases.
Reproduction in unicellular protozoans like Amoeba and Paramecium.
Multiplication in prokaryotes like bacteria (via binary fission).
Option A is incorrect because binary fission is a mode of asexual, not sexual, reproduction.
Option B is incorrect because spore formation (sporulation) is a different method of asexual reproduction often seen under unfavorable conditions.
Option D is incorrect because binary fission occurs primarily in unicellular organisms (protists and bacteria).
C is correct тАФ Binary fission is a form of asexual reproduction where the parent cell divides into two daughter cells.
In competitive exams, remember that binary fission results in two equal-sized daughter cells, distinguishing it from budding where the daughter cell is initially much smaller.
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