No, both testicles do the same job, they aren't differentiated in any way.
A boy with one testicle goes through puberty the same time a person with two does. The second testicle is a spare!!!! You only need one!
If he has a testicle, there will be sperm.
Yes, as long as the testicle is functioning properly then you can reproduce with one testicle.
Yes, he has only one testicle.
yes you can (I did)
Can a man with one testicle breed? The answer is YES
it's either a joke or someone being stupid they are saying that if a man has a testicle that makes boys and a testicle that makes girls and if one gets removed then they can only make one gender this isn't true at all though
Many males have a testicle , which is larger then the other one.
Only one way to find out.
Either testicle is capable of getting a female pregnant. Even a male with only one testicle can get a female pregnant.
Depends on which testicle....is he in the northern or southern hemisphere?
A guy with one testicle will have the same change in his voice that he would have if he had two.