1.   But where had his Glover genes come from if his father was in a sperm bank?

2.   In person, however, they have matured about as much as a sperm in a deep frozen sperm bank.

3.   The chief donors to sperm banks were medical students.

4.   They can go to a sperm bank and take a chance on unknown genes.

5.   A woman wanting a child may go to a sperm bank.

6.   About a dozen sperm banks in this country offer what is called donor identification release.

7.   Canine sperm banks, meanwhile, once used chiefly to breed show dogs, are freezing more samples from the more ordinary family purebred or mutt.

8.   For more than a decade, lesbians have been routinely becoming mothers, often through the services of a sperm bank.

9.   He offered to pay the costs of sending his semen to a sperm bank.

10.   I know that some lesbians are getting pregnant by going to sperm banks.