Crime Index for in Kutztown, PA view crime statistics report for Kutztown view report *100 is national avg. Greater than 100 means higher crime, lower means less crime. Total Crime Index
How are sex-linked traits inherited? Alleles are passed from the parentsâ sex chromosomes to nonsex chromosomes in the offspring. Alleles are passed from the parentsâ nonsex chromosomes to the sex.
A functional second copy can often work well enough on its own, acting as a sort of back-up to prevent problems. With sex-linked genes, male mammals (and female birds) have no back-up copy. In people, a number of genetic disorders are sex-linked, including Duchenne muscular dystrophy and hemophilia. These and other sex-inked disorders are much more common in boys than in girls. Red/green colorblindness is also caused by a defective gene on the X-chromosome.