NEET BIOLOGY

Detailed explanation-1: -The second type of nucleus, the macronucleus, is responsible for all nuclear transcription during asexual growth and is thus often referred to as a “somatic” nucleus. Its genome represents a subset of the sequences present in the micronucleus organized in the form of fragmented DNA molecules with new telomeres.

Detailed explanation-2: -A macronucleus is the larger nucleus whereas the micronucleus is the smaller nucleus. Apart from their relative sizes, the micronucleus and the macronucleus differ based on their genetic features. The micronucleus is a diploid nucleus whereas the macronucleus is a polypoloid nucleus.

Detailed explanation-3: -plural macronuclei-ˌī also macronucleuses. : a relatively large densely staining nucleus of most ciliate protozoans that is derived from micronuclei and controls various nonreproductive functions compare micronucleus.

Detailed explanation-4: -macronucleus, relatively large nucleus believed to influence many cell activities. It occurs in suctorian and ciliate protozoans (e.g., Paramecium).