McqMate
Q. |
The gene which exhibites multiple effects is known as – |
A. | Pseudogene |
B. | Pleiotropic |
C. | Complementary |
D. | Polygene |
Answer» B. Pleiotropic | |
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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