Two "Hits" Are Required to Inactivate Tumor-Suppressor Genes Because

question 37

Multiple Choice

Two "hits" are required to inactivate tumor-suppressor genes because:

• A) Each allele must be altered, and each person has two copies, or alleles, of each gene, one from each parent.
• B) The first hit stops tissue growth, and the second hit is needed to cause abnormal tissue growth.
• C) Tumor-suppressor genes are larger than proto-oncogenes, requiring two hits to effect carcinogenesis.
• D) The first hit is insufficient to cause enough damage to cause a mutation.

---

Definitions:

Marginal Product

The additional output produced as a result of adding one more unit of a specific input, holding all other inputs constant.

Average Product

The output per unit of a particular input, such as the quantity of goods produced per worker.

Workers

Individuals employed to perform tasks or services in exchange for compensation.

Average Product

The output produced per unit of input used, calculated by dividing total product by the quantity of input.