Paramecium is a protozoa that is more developed than Amoeba. It reproduces both sexually and asexually. Asexual reproduction is by binary fission and sexual reproduction is by conjugation.
(a) Binary Fission in Paramecium
![binary fission paramecium](https://i1.wp.com/fixpiecdn.files.wordpress.com/2020/05/binary-fission-paramecium.jpg?ssl=1)
Sexual Reproduction in Paramecium
Sexual reproduction by conjugation takes in Paramecium in the following steps:
- Two individuals called conjugant come together and lie side by side.
- The meganucleus of each conjugants disintegrate.
- The micronucleus of each conjugants divides into two parts twice, forming four micronuclei. Three of the four micro – nuclei in each conjugant disintegrate. The remaining micronucleus again divides into two.
- One micronucleus from each conjugal migrates into the other conjugant. In other words, the conjugants exchange nuclear material.
- The migratory nucleus of one conjugant and the stationary nucleus of the other conjugant fuse in each individual to form a fusion nucleus in each ex-conjugal divides into four new individuals, each with a new
- The fusion nucleus in each ex-conjugant divides into four individuals each, with a new meganucleus and micronucleus.
![paramecium -sexual](https://i2.wp.com/fixpiecdn.files.wordpress.com/2020/05/paramecium-sexual.jpg?ssl=1)
Paramecium in conjugation: Stages:
![paramecium conjugation](https://i0.wp.com/fixpiecdn.files.wordpress.com/2020/05/paramecium-conjugation.jpg?ssl=1)
EVALUATION (POST THE QUESTION TITLE AND YOUR ANSWER IN THE QUESTION BOX BELOW FOR EVALUATION AND DISCUSSION)
- Explain sexual reproduction in paramecium
- Describe asexual reproduction in paramecium with the aid of a suitable diagram
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