Question 7
Two characteristics are found to be inherited together far more often than chance would predict. What is the most likely explanation?
The right answer is the one marked above.
The two genes lie on the same chromosome. A gamete gets whole chromosomes, so genes on the same chromosome usually travel together. They are said to be linked.
Linkage is some of the strongest evidence that genes are physically attached to something that moves as a unit. Free-floating factors would have no reason to travel together.