XY
Cell Biology, Basic Genetics, Gender Science. Human cells contain 23 pairs of chromosomes for a total of 46. There are 22 pairs of autosomes and one pair of sex chromosomes. Chromosomes determine everything from hair color and eye color to gender. Whether you are a male or female depends on the presence or absence of certain chromosomes.The sex chromosomes are the X chromosome and the Y chromosome. These chromosomes determine gender. In human sexual reproduction, two distinct gametes fuse to form a zygote. The male gametes or sperm cells in humans and other mammals are heterogametic and contain one of two types of sex chromosomes. They are either X or Y. The female gametes or eggs however, contain only the X sex chromosome and are homogametic. The sperm cell determines the sex of an individual in this case. If a sperm cell containing an X chromosome fertilizes an egg, the resulting zygote will be XX or female. If the sperm cell contains a Y chromosome, then the resulting zygote will be XY or male.
The Urban Dictionary Tee
I love my NIckIsBum T-Shirt, it is very comfortable.
used it as a cum rag
Great fit and soft material. Gave as gift. Big hit!
Great conversation piece! Plus I can never find anything with my name on it. This was a great find! Will definitely order more!!!!
Got exactly what I wanted.
Exactly what I expected, thanks!
I don't visit Urban Dictionary alit so I only recently saw they offered merch. I immediately started looking up words for potential Christmas gifts. Found the ideal gift for my brother & ordered a shirt. It arrived very quickly and I love it. It's exactly as pictured on the site and being able to customize it with his name makes it perfect. I only hope he loves it as much as I do. Will definitely keep Urban Dictionary in mind when I need to find a great gift.
i love my shirt i made it say sapnap cause yassssssssss
Best This is the best shirt I have ever gotten I love it and I definitly recomend it to any friend named Hailie
So cool to quickly be able to turn a trending phrase into wearable art!
it was really good i put dad with the def of tfu and lol
*clap* *clap* MEME REVIEW. this is so amazing, alexa play despacito 9001
Love this shirt. Got it for my brother for Christmas and I can’t wait for his reaction! Ordered size L and it seems maybe a little big? Thank you!
thankyou for all your kind reviews. For everyone complaining about the spelling we was high on the bezamine while writing it so fuck youuuuuu
I love it
I really love it it's me through and through. Thank you. And when I want another shirt made I will be going through you guys.
ThIs is perfect
Great quality and fast shipping and I just dropped my mug.
This T-shirt is a high quality product. It fits perfectly and is very comfortable as well. I'm totally satisfied with the product and recommend it to everyone. Not to sound like a commercial or anything, but I really am impressed! Check it out for yourself. If you're thinking about buying something, go ahead. I'm sure I'll be buying more for a few friends soon. Thanks guys! I love this shirt! For real.
My niece laughed and loves her custom shirt.
Review Details
Pro Customization
Create unique products with your own words and definitions
Live Preview
Personalize Your Design
Debug: Product Metadata
| Key | Value (click to copy) |
|---|---|
Copied! |
Return Policy
Made Just For You
Each product is custom-printed with your unique text, making it truly one-of-a-kind.
Defect-Free Guarantee
If your product arrives with printing defects, damage, or quality issues, we'll send you a free replacement.
Custom Orders
Due to the personalized nature of your order, we don't accept returns for change of mind or sizing issues.
Questions about your order? Contact our support team for assistance.
Share this product
Size Guide
Measurements may vary by up to 2" (5 cm). Pro tip: Measure one of your t-shirts at home and compare!
A - Length
Measure from the top of the collar to the bottom hem
B - Width
Measure across the chest from armpit to armpit
Size Chart
| Size | Length | Width |
|---|---|---|
| XS | 27" | 16½" |
| S | 28" | 18" |
| M | 29" | 20" |
| L | 30" | 22" |
| XL | 31" | 24" |
| 2XL | 32" | 26" |
| 3XL | 33" | 28" |
| Size | Length | Width |
|---|---|---|
| XS | 69 cm | 42 cm |
| S | 71 cm | 46 cm |
| M | 74 cm | 51 cm |
| L | 76 cm | 56 cm |
| XL | 79 cm | 61 cm |
| 2XL | 81 cm | 66 cm |
| 3XL | 84 cm | 71 cm |