6.3:Prokaryotes divide by binary fission.
Binary Fission?
A type of asexual reproduction in which the parent cell divides into two genetically identical daughter cells. Bacteria and other prokaryotes reproduce by binary fission.
Asexual Reproduction?
A type of reproduction common in prokaryotes and plants, and also occurring in many other multicellular organisms, in which the offspring inherit their DNA from a single parent.
Sexual Reproduction?
A type of reproduction in which offspring are produced by the fusion of gametes from two distinct sexes.
Daughter Cells?
Cells produced by the division of a parent cell.
Parent Cells?
Cells that divide to form daughter cells, which are genetically identical to the parent cell.
Explain Binary Fission step by step?
Replication begins as the double-stranded DNA molecule unwinds from its coiled-up configuration. Once the strands are uncoiled, they split apart like a zipper. As the double-stranded molecule unzips, free-floating nucleotide bases attach to the growing DNA backbone, with bases exposed on each of the two separated, single-stranded circular molecules of DNA, matching A to T and G to C, thus creating two identical double-stranded DNA molecules. The newly created circular chromosomes of DNA attach to the inside of the plasma membrane at different spots from each other. The original cell, called the parent cell, then pinches in until it divides into two new cells, called daughter cells. Each of the daughter cells has an exact and precise two-stranded copy of the original two-stranded circular chromosome.
Replication?
The process in both eukaryotes and prokaryotes by which DNA duplicates itself in preparation for cell division.