<span>#1) With reference to the role of oncogenes, explain how the normal controls over the cell cycle can be lost.
Answer: The way that cell cycle can be lost is by going through changes in the activity of cell cycle regulators. Cancer causes different types of mutations. There are two types of cell cycle regulators that can promote the development of cancer:
-Positive Regulators that can be over activated (become oncogenic).
-Negative Regulators (tumor suppressors) which can be inactivated.
I hope it helps, Regards. <span /><span>
</span></span>
C. It happens over a period of time not overnight
d.<span>29,035 feet mount eversest</span>
Answer:
Explanation:
Genetically Identical to the parent, mitosis,
Advantages: Fast and Efficient
Disadvantages: Lacks diversity
Answer:
This movement is called plate motion, or tectonic shift
Explanation:
Answer: The fertilized ovum, now called a zygote, is ready for the first mitotic cell division.
