Hey friend.
Let's figure this out.
A person can be tested for the allele that causes Huntington’s disease because the "DNA SEQUENCE," of that allele is different from that of the normal allele.
Hope this helps. ;)
Stabilizing one. None of the other ones make sence.
Answer:
A binary star is a star system consisting of two stars orbiting around their common barycenter. Systems of two or more stars are called multiple star systems. These systems, especially when more distant, often appear to the unaided eye as a single point of light, and are then revealed as multiple by other means.
