Dead inside but festive Christmas shirt, sweater

“Homozygous means having two of the same alleles for a trait. The prefix 'homo' means 'same', and the prefix ‘hetero’ means different. [Giggles occur]. All right, everyone who needs to laugh about hetero and homo, now's the time. Laugh it up now, because this is the only time you get to laugh about heterozygous and homozygous because they sound like heterosexual and homosexual. Get it out of your system so we can get back to work.”

Buy this shirt: Dead inside but festive Christmas shirt, sweater

From: https://t-shirtat.com/