Which one of the following is NOT a mode of asexual reproduction?

Options

A. Binary fission
B. Multiple fission
C. Budding
D. Conjugation

Explanation

To determine which of the following is NOT a mode of asexual reproduction, we need to analyze each option provided.

1. **Binary Fission**: This is a common method of asexual reproduction, especially in unicellular organisms like bacteria. In binary fission, the organism divides into two equal parts, and each part grows into a new organism. This process involves a single parent organism.

2. **Multiple Fission**: Similar to binary fission, multiple fission involves the division of a single organism into multiple offspring simultaneously. This is also a form of asexual reproduction, commonly seen in certain protozoans.

3. **Budding**: In budding, a new organism develops from an outgrowth or bud on the parent organism. This is another form of asexual reproduction, where the offspring is genetically identical to the parent.

4. **Conjugation**: This is a process where two organisms (usually bacteria) come together to exchange genetic material. It involves the transfer of DNA from one bacterium to another, which introduces genetic variation. Since conjugation involves two organisms and the exchange of genetic material, it is considered a sexual method of reproduction.

Based on this analysis, the option that is NOT a mode of asexual reproduction is **Conjugation**.

**Final Answer**: Conjugation is NOT a mode of asexual reproduction.

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