Evidence That the Development of Cancer Is a Multistep Process

question 2

Multiple Choice

Evidence that the development of cancer is a multistep process includes:

• A)the observation that certain tumor-suppressor genes and oncogenes are involved in a sequential manner in the development of colon cancer.
• B)the fact that proto-oncogenes are widely conserved in evolution.
• C)the usual occurrence of retinoblastoma at a young age.
• D)the development of a cancer as a result of activation of a single oncogene by any of a variety of mechanisms.
• E)the fact that there are many genetic and epigenetic mechanisms that lead to inactivation of the same tumor-suppressor gene.

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Definitions:

Qualitative Research Tradition

A research approach that focuses on understanding human behavior and the reasons behind it through observation and interaction, rather than numerical analysis.

Stage I Alzheimer's

The initial phase of Alzheimer's disease, characterized by mild memory loss and subtle changes in behavior or thinking patterns.

Reliability

The degree to which an instrument produces consistent results on repeated use.

Consistency

The uniformity and coherence in the texture, quality, or performance of a substance or process over time.