Mutations in a normal growth-stimulating gene are most likely to have no effect or to cause

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Mutations in a normal growth-stimulating gene are most likely to result in the loss of responsiveness to growth stimulation in the cell with the mutant gene. This is because a mutation in a growth-stimulating gene may cause the gene to become overactive, leading to uncontrolled growth and division of the cell, which can result in cancer. However, a mutation may also cause the gene to become underactive, resulting in decreased responsiveness to growth signals and slower cell division. In some cases, the mutation may have no effect at all. Excessive growth in the cells surrounding the one with the mutant gene, mutator effects, and apoptosis are less likely outcomes of mutations in growth-stimulating genes.

Mutations in a Normal Growth-Stimulating Gene Are Most Likely to Have