The answer is A: The rough ER has visible ribosomes.
Answer:
Humans are burning carbon and putting it into the atmosphere.
Explanation:
Humans are not benefiting our atmosphere, it would be better without us but doesn't mean we cant help!
The role of cyclin-dependent kinases in the cell cycle is that, they stop the cycle if something has gone wrong.
Explanation:
In Eukaryotic cells cyclin-dependent kinases are universal regulator cell. It undergoes a constant cycle and degradation known as Mitotic and G1 cyclin. When cycle dependent cycle synthesize it acts like an activating protein and then bind to cyclin-dependent kinases forming cyclin-dependent kinases complex.
Now it acts as signal to the cell to pass the next phase of cell cycle. After its cyclin gets degraded, it deactivates the cyclin-dependent kinases and from particular phase signalling stop
The end product will be 4 haploid cells, 4 sex cells having half the number of chromosomes of the original cell and 2 new cells.