Down syndrome is caused by nondisjunction of chromosome pair 21. If a person with Down syndrome has a child with a person who does not have Down syndrome, what is the probability that the child will have Down syndrome?

0%

50%

75%

100%

Question

Down syndrome is caused by nondisjunction of chromosome pair 21. If a person with Down syndrome has a child with a person who does not have Down syndrome, what is the probability that the child will have Down syndrome?

0%

50%

75%

100%

anonymous · Answer

This is not a writing question

anonymous · Answer

This is a math question silly. The answer is 50% though. If you have a person that has the disease thats 100%. Then if you have a person who does NOT have the disease, that is also 100%.  If you take both and divde them you have 50%.