McqMate
| Q. |
The gene which exhibites multiple effects is known as – |
| A. | Pseudogene |
| B. | Pleiotropic |
| C. | Complementary |
| D. | Polygene |
| Answer» B. Pleiotropic | |
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Explanation: Pleiotropy describes the genetic effect of a single gene on multiple phenotypic traits. The underlying mechanism is that the gene codes for a product that is, for example, used by various cells, or has a signaling function on various targets. A classic example of pleiotropy is phenylketonuria, a human disease that affects multiple systems but is caused by one gene defect. |
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