Question

All human beings have cellular oncogenes but only few suffer from cancer disease. Give reasons.

Answer 1

Ans.(i) All cells have cellular oncogenes or proto-oncogene, which code for certain growth factors. Under certain conditions, they get activated and lead to oncogenic transformation causing cancer.This transformation is induced by physical,chemical and biological factors called carcinogens.

Answer 2

In most organisms of human beings the proto oncogene is found in inactive form.

Explanation:

• Inactive form of the gene is known as the proto oncogene. this is converted to the oncogene after a stimulus which had been given to the gene for sustained time result in mutation of the proto oncogene to form the oncogene.

• This oncogene stimulates the cells to grow abnormally. Also the the inhibitors of the growth of the inhibitors of the cell division is restricted by this change.

To know more about oncogene,

Oncogene is responsible for which disease? Brainly.in

https://brainly.in/question/1180810