NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In binary fission, a bacterial cell ____ in order to reproduce
A
Divides
B
Multiplies
C
Mates
D
Produces gametes
E
Fragments
Explanation: 

Detailed explanation-1: -Most bacteria rely on binary fission for propagation. Conceptually this is a simple process; a cell just needs to grow to twice its starting size and then split in two.

Detailed explanation-2: -Bacteria reproduce through a process called binary fission. During binary fission, the chromosome copies itself, forming two genetically identical copies. Then, the cell enlarges and divides into two new daughter cells. The two daughter cells are identical to the parent cell.

Detailed explanation-3: -Prokaryotes such as E. coli, Archaea as well as eukaryotes such as euglena reproduce through binary fission.

Detailed explanation-4: -More specifically, the following steps occur: The bacterium before binary fission is when the DNA is tightly coiled. The DNA of the bacterium has uncoiled and duplicated. The DNA is pulled to the separate poles of the bacterium as it increases the size to prepare for splitting.

Detailed explanation-5: -How do bacteria reproduce? Most bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates).

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