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Chapter 1: Q. 21 (page 7)

Cancer causing genes are called ________.

a. transformation genes

b. tumor suppressor genes

c. oncogenes

d. mutated genes

Short Answer

Expert verified

Option C is the correct answer

Step by step solution

01

Introduction

Proto-oncogenes are the genes that encode the positive cell-cycle regulators. Normal genes called proto-oncogenes can mutate to become oncogenes, or genes that make a cell become cancer.

02

The explanation for the correct answer

Oncogenes

  • These transform a malignant cell into a healthy cell.
  • It is unknown if these gene mutations are inherited.
03

The explanation for the incorrect options

  • The opposing side of cell growth control is represented by tumour suppressor genes, which typically operate to prevent tumour development and cell proliferation.
  • A gene that has been altered involves the expression of foreign genes in the host gene.
  • A gene that has undergone mutation is one that has lost, acquired, or exchanged some of the genetic material from its parent, altering it in a way that makes it permanently transmissible.

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