In bacteria, binary fission can be modeled in(1 point)
Responses
four stages.
four stages.
three stages.
three stages.
two stages.
two stages.
one stage.
To determine the correct answer, let's break down the process of bacterial binary fission and see how many stages are involved.
1. First, the bacterial cell undergoes DNA replication, where the genetic material is duplicated.
2. Next, the cell elongates as the two copies of the DNA separate.
3. The cell membrane starts to grow inward at the center of the cell, which is called the septum formation.
4. Finally, the septum completely forms, resulting in the division of the cell into two identical daughter cells.
Based on this breakdown, it is evident that the process involves four stages: DNA replication, cell elongation, septum formation, and cell division.
Therefore, the correct answer is four stages.
The process by which a modified stem or root of a parent plant grows offspring that remain attached is called(1 point)
Responses
tuber reproduction.
tuber reproduction.
fragmentation.
fragmentation.
binary fission.
binary fission.
vegetative reproduction.
Without external forces, the third generation of a bacterium and the original parent cell will have approximately ________ matching DNA sequences.(1 point)
Responses
12.5%
12.5%
25%
25%
33%
33%
100%
An established bacterial community is exposed to a dark environment for several days. Bacteria that require light to reproduce will show _________ compared to bacteria that do not require light to reproduce. (1 point)
Responses
more growth
more growth
uncontrollable growth
uncontrollable growth
lack of growth
lack of growth
the same amount of growth