Question

Which of the following results from conjugation in paramecium?
(A) Cell death
(B) Cell division
(C) Budding
(D) Recombination

Answer 1

Hint: Paramecium comes under the kingdom of Chromista and is the single celled unicellular organisms. They are mainly found in the areas of freshwater, marine and the brackish water etc. These organisms eat the other microorganisms like bacteria, yeast, algae etc. for their nutrition. The cilia present around their body in them help them for the movement.

Complete answer:
Conjugation is a technique for sexual reproduction to produce the young one in the paramecium. In this process, the two paramecium which are sexually opposite to each other mating by interacting with one another. They append to their ventral surfaces and exchange their hereditary material through the cytoplasmic bridge.

In the cytoplasmic bridge, both the male pronucleus and the female pronucleus join together, this process results in the formation of the diploid zygote. Hence the zygote is the end product of the conjugation in the paramecium. This zygote in turn goes through a progression of cell divisions by the process of meiosis to frame the new paramecium with the parental gene. Hence the cell division is the result from the conjugation in the paramecium.

Hence the correct answer is OPTION(B)

Note: Paramecium synthesises the trichocysts and eject it in the external environment. This trichocyte is full of proteins. This helps them to detect food by helping them to capture prey in a better way. They are also used for the purpose of self-defense.