QuestionSBA
QuestionChoice
Oncogenes are dominant genes that promote cell proliferation. Their actions are balanced out by anti-oncogenes which promote apoptosis.
10003462
b
Dominant gene that promotes cell apoptosis
QuestionChoice
Neither oncogenes nor anti-oncogenes promote tissue necrosis. Tissue necrosis occurs due to an insult to tissue e.g. ischaemia, infarction or trauma. There are different types of necrosis including fat, liquefactive, fibrinoid, caseous and gangrenous necrosis.
10003465
e
Dominant gene that promotes tissue necrosis
QuestionChoice
This describes anti-oncogenes (e.g. p53) which are recessive genes that promote cell apoptosis. Mutations in anti-oncogenes lead to uncontrolled cell proliferation which predisposes individuals to cancer.
10003464
d
Recessive gene that promotes cell apoptosis
QuestionChoice
Oncogenes are dominant genes, not recessive genes.
10003463
c
Recessive gene that promotes cell proliferation
QuestionChoice
Oncogenes are dominant genes that promote cell proliferation. An example of an oncogene is the HER2 gene. Mutations in oncogenes lead to uncontrolled cell proliferation which predisposes individuals to cancer.
10003461
a
Dominant gene that promotes cell proliferation
Concept
Chapter
2693
4168
Carcinogenesis
Topic
160
Oncology
13239
Which of the following is the correct description of an oncogene?
a