The answer is letter D. The macronucleus is not exchanged during conjugation. <span>It normally contains the working duplicates/copies of genes necessary to support an enormous cell. Macronucleus is formed by a direct division of the polyploid nucleus right after conjugation then followed by series of internal gene replication that is not oftenly occurring in micronucleuse.</span>
B)Mendelian genes are at specific loci on the chromosome and,in turn, segregate during meiosis.
<span>To provide a great deal of information at a glance</span>