The genetic information in Paramecium is contained in the micronucleus.

Explanation:
Paramecium is a type of single-celled organism that belongs to the group of ciliates. It possesses two types of nuclei: the micronucleus and the macronucleus.

1. Micronucleus:
- The micronucleus is the smaller of the two nuclei in Paramecium and is involved in sexual reproduction.
- It contains the genetic material in the form of diploid chromosomes, which are responsible for maintaining the genetic diversity of the species.
- During sexual reproduction, the micronucleus undergoes meiosis to produce haploid gametes, which then fuse with gametes from another Paramecium individual to form a zygote.

2. Macronucleus:
- The macronucleus is larger in size and is involved in vegetative functions and asexual reproduction.
- It contains multiple copies of the genome, which are responsible for regulating various cellular processes, including metabolism, growth, and cell division.
- The macronucleus is derived from the micronucleus through a process called genome amplification, where specific regions of the micronuclear DNA are eliminated and the remaining regions are amplified to form the macronuclear DNA.

3. Genetic Information:
- While both the micronucleus and the macronucleus are essential for the survival and functioning of Paramecium, the genetic information is primarily contained in the micronucleus.
- The micronucleus carries the complete set of genetic material required for sexual reproduction and genetic exchange between individuals.
- The macronucleus, on the other hand, contains an amplified version of the genetic material, which is involved in the day-to-day cellular functions and asexual reproduction.

In summary, the genetic information in Paramecium is primarily contained in the micronucleus, which is responsible for sexual reproduction and the maintenance of genetic diversity in the species. The macronucleus, although important for various cellular functions, does not carry the complete set of genetic material and is derived from the micronucleus through genome amplification.