Can somebody explain imprinting?

<p>Imprinting a gene in biology. Can somebody PLEASE explain this to me? Our teacher has taught us 2 completely different things and the test is tomorrow. I get the basics but if somebody could just explain it or find send a link, that would be great!
Thanks so much.</p>

<p><a href=“http://en.wikipedia.org/wiki/Genomic_Imprinting[/url]”>http://en.wikipedia.org/wiki/Genomic_Imprinting&lt;/a&gt;&lt;/p&gt;