HEREDITY
THE PEDIGREE
| Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 | 
 Hemophilia is caused by a sex-linked allele on the X chromosome? 
|  |  True 
 | 
|  |  False 
 | 
 Explanation: 
Detailed explanation-1: -Hemophilia is a sex-linked recessive disorder. The abnormal gene responsible for hemophilia is carried on the X chromosome. Males have one X chromosome and one Y chromosome.
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