Final answer:
In paramecia, genetic information is carried in one macronucleus and several smaller micronuclei. The macronucleus is responsible for asexual binary fission, while the micronucleus is necessary for sexual reproduction.
Step-by-step explanation:
In paramecia, genetic information is carried in one macronucleus and several smaller micronuclei. The macronucleus is responsible for asexual binary fission and other biological functions, while the micronucleus is essential for sexual reproduction. During conjugation, the micronucleus undergoes meiosis and generates four haploid micronuclei, of which three degenerate, leaving one micronucleus that undergoes mitosis.