Click on WorldCat in the alphabetical list to search the collections of thousands of libraries from around the world.
You can also search for books at other universities with their online catalogs. Almost all universities offer access to their online catalogs through the Internet. Enter the name of the university into Google, then search for the library page.
To find books on Genetics you can browse the library shelves on the fifth floor of Sciences and Technology Library in these call number ranges:
QH427 - dictionary of genetics
QH430 - basic information/overview of genetics
QH431 - human genetics and cyctogenetics
QH433 - plant genetics
QH434 - bacterial genetics
QH438.4 - statistical genetics
QH438.5 - epigenetics
QH441.2 - bioinformatics
QH442 - genetic engineering
QH442.2 - cloning
QH450 - gene expression
QH465-467 - DNA damage & repair
The library is catalogued according to the Library of Congress and from here you can see a break down of all call number ranges.