Simplify the following text for a Grade 10 native English-speaking person.
Original: She produced the first genetic map for maize , linking regions of the chromosome with physical traits , and demonstrated the role of the telomere and centromere , regions of the chromosome that are important in the conservation of genetic information .
Simplified: She produced the first genetic map for maize , and demonstrated the role of the telomere and centromere . These are regions of the chromosome that are important in preserving genetic information .