Answer:
A
Explanation:
a. contain checkpoints that determine if the cycle will continue.
b. help move chromosomes to the new daughter cells.
c. produce more chromosomes before the cell divides.
d. grow and produce enough cytoplasm to fill two cells.
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<em>The correct answer would be that G1 and G2 contain checkpoints that determine if the cycle will continue or otherwise.</em>
The cell cycle generally has three checkpoints that happen at G1, G2, and M phase of the cycle.
At G1 checkpoint, the integrity of the DNA of the cell is assessed to ensure that there are no damages and other conditions such as size and energy reserve are checked.
At G2 checkpoint, the cell is assessed for proper chromosome duplication to ensure that there are no mistakes or damages. The size of the cell and the amount of protein are also checked to ensure that the cell is ready for the active division phase.
At M checkpoint, correct attachment of the spindle fiber to the kinetochore of the chromosomes is checked. This checkpoint is also known as the spindle checkpoint and it happens towards the concluding phase of the metaphase stage.
<u>The correct option is therefore, A.</u>
Answer:
Packaging waste management is the planning and organization of activities related to the collection, transport, storage, treatment and disposal of packaging waste, including the supervision of these activities and the care of post-closure waste management facilities.
Explanation:
The most important rule of recycling is that there is no pollution in the bin itself. This means that bottles and cans must be emptied and leftover food placed in another bucket.
Sort household waste into so-called Home packaging and other waste in groups and try to dispose of it in special containers for packaging waste. It may happen that there are no such containers in your area yet, the advice is to sort and separate the packaging waste and dispose of it in a container separately, because this sort will be easier to collect and pass on to the processing process.
<em>Counter stain used in gram staining is <u>safranin.</u>.......</em>
Yes because a homogeneous mixture is a mixture that has the same uniform appearance and composition throughout while with heterogeneous you can see the different parts of the mixture and pick them out
Answer:
was a former stage station of the San Antonio-San Diego Mail Line
Explanation:
