Abort gay babies?

News item:

"Experiments that claim to ‘cure’ homosexual rams spark anger": http://www.timesonline.co.uk/article/0,,2087-2524408_1,00.html

This article discusses a series of experiments done on the 10% of rams that are more prone to attempt to mount other rams than ewes. The goal is to increase their desire to mount ewes. Results show that hormonal levels can be monitored and changed to increase mounting of ewes and therefor increase lamb production. A ram that tries to mate with other rams is useless to the farmer. This has been interpreted as a possible medical cure for homosexuality.

But buried in the story is a discussion of how this could lead to pre-natal testing to determine the probability that an unborn child will grow up "gay". If the mother should decide that she doesn't want a "gay" child, should be allowed to abort it? Should she even be allowed to test for that? What if she wants a "gay" child? Should she be allowed to abort any unborn babies that do not test positive for "gay"?