DNA, or deoxyribonucleic acid, is the molecule that makes up an organismâs genome in the nucleus of every cell. It consists of genes, which are the molecular codes for proteins â the building blocks of our tissues and their functions.he percentage of genes or DNA that organisms share records their similarities. We share more genes with organisms that are more closely related to us. Humans belong to the biological group known as Primates, and are classified with the great apes, one of the major groups of the primate evolutionary tree.
exists and is an alternate of . Making the world better, one answer at a time. Sister chromatids are attached to each other in the part of the chromosome called the centromere. Sister chromatids are attached to each other in the part of the chromosome called the centromere.
during metaphase the mircotubles attach to the centromere (the kinetchore or the middle that connects the two sister chromosomes) of the chromosomes. the main goal is to pull the two sister chromatins apart and separate them to opposite ends of the cell. then the cell can divide into 2 sister cells and have the same genetic material. the spindle is ...