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Cell division is regulated by two major genes. ___________ stimulate cell division and ___________ inhibits cell division.
A. oncogenes, tumor suppressor genes
B. proto-oncogenes, oncogenes
C. tumor suppressor genes, proto-oncogenes
D. proto-oncogenes, tumor suppressor genes


Sagot :

machid

The answer is A

Explanation:

Two classes of genes, oncogenes and tumor suppressor genes, link cell cycle control to tumor formation and development. Oncogenes in their proto-oncogene state drive the cell cycle forward, allowing cells to proceed from one cell cycle stage to the next.