Cytologists have characterized numerous structural rearrangements in chromosomes, including partial duplications, deletions, inversions, and translocations.…

Inherited disorders can arise when chromosomes behave abnormally during meiosis. Chromosome disorders can be divided…

Mitosis and meiosis, which are both forms of division of the nucleus in eukaryotic cells,…

Sexual reproduction requires fertilization, a union of two cells from two individual organisms. If those…

Fertilization and meiosis alternate in sexual life cycles. What happens between these two events depends…

There is no question that sexual reproduction provides evolutionary advantages to organisms that employ this…

Figure 7.1 Each of us, like these other large multicellular organisms, begins life as a…

The precise timing and formation of the mitotic spindle is critical to the success of…

Prokaryotes such as bacteria propagate by binary fission. For unicellular organisms, cell division is the…

Cancer is a collective name for many different diseases caused by a common mechanism: uncontrolled cell division.…