Answer:
The correct answer is b a mutation in a gene that codes for protein regulating cell division.
Explanation:
Cancer is a disease that result due unregulated cell divison.There are many tumor suppressor protein present in our body such as retinoblastoma tumor suppressor protein,p53 protein.
These tumor suppressor protein helps to carry out cell divison in a regulated fashion and send signal for division only to that cell that have undamaged DNA.
Mutation in the gene encoding tumor suppressor protein leads to development of cancer.
<span>The last spot that csf circulates is at the arachnoid granulations that connect sthe subrachnoid space with the superior sagittal sinus at the superior portion of the neurocranium.</span>
Answer: Calcium is a mineral and so is Emerald because the come naturally from earth and are some of the building blocks of Rocks.
Explanation: