Bacteria reproduce asexually through binary fission in which they divide into two by simple division under favorable conditions.
Binary fission takes place about every 20 minutes. Bacteria have a single circular chromosome made of DNA.
When the DNA molecule replicates, it results in the formation of two chromosomes.
The two chromosomes move towards opposite sides.
The middle portion of the cell membrane invaginates inwards inward from the two sides and when meet in the center it separates the two halves of the bacterial cell.
New cell-wall is deposited between two cross cell membranes.
The daughter bacteria grow to their normal size, and then separate from one another.
No comments:
Post a Comment