Question

Define conjugation with reference to ciliates.

Answer 1

a type of sexual reproduction in ciliate protozoans involving the temporary union of two individuals and the subsequent migration and fusion of the gametic nuclei. (in bacteria) the direct transfer of DNA between two cells that are temporarily joined.

Answer 2

Sexual reproduction in ciliates is by conjugation. The figure shows the process in Paramecium caudatum. Two paramecia come together side by side, and a cytoplasmic bridge forms between them. The micronucleus of each undergoes meiosis. Three of the resulting haploid (n) nuclei disintegrate..