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.
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.
Professor:...being the actual meiotic step in which a diploid cell is converted to a haploid cell. This leads us to syngamy where the two gametes form a zygote. Now remember that the combination of two X chromosomes gives us a female and XY chromosomses a male...
Stifler: What the fuck is he on about?
Danny: Shush! The fusion of gametophytes during syngamy, you retard.
Stifler: Professor? Last time we checked Danny's karyotype we came to the shocking discovery that he carries two X chromosomes. Does that make him a female?
Danny: for God sake.
Professor: Perhaps so Mr.Raffaelli, which would explain the somewhat stiff bulge you get each time Mr.Cohen sits next to you.
Danny: Oh my GOD dude! You're homogametic!
Stifler: What the fuck is he on about?
Danny: Shush! The fusion of gametophytes during syngamy, you retard.
Stifler: Professor? Last time we checked Danny's karyotype we came to the shocking discovery that he carries two X chromosomes. Does that make him a female?
Danny: for God sake.
Professor: Perhaps so Mr.Raffaelli, which would explain the somewhat stiff bulge you get each time Mr.Cohen sits next to you.
Danny: Oh my GOD dude! You're homogametic!
by NeverMindWho February 27, 2006
Batman's protege' and ballerina side-kick. Usually identifiable by his red, yellow and green plummage and gayish acrobatics. Wears a mask like his patron and is known to aid the fearless caped superhero in saving the World from Evil Forces.
Batman: Ouch! Ahoy Robin! Have you a spare pair of lycra pantyhose?
Robin: Why Batman?
Batman: These damn rose bushes poked a hole in mine.
Robin: Oh you poor Robin's darling?
Robin: Why Batman?
Batman: These damn rose bushes poked a hole in mine.
Robin: Oh you poor Robin's darling?
by NeverMindWho March 01, 2006
Sitting in your room and writing nonsense on the Wall of urbandictionary.com or/and adding new definition entries in mad succession in the hope that at least one gets published and "oh wouldn't it be sweet victory if one made it to the front page".
Go and study, you turkey!
(followd by a palm backhander on the kids head).
The future of your country's economy depends on you!
(followd by a palm backhander on the kids head).
The future of your country's economy depends on you!
by NeverMindWho March 02, 2006
Girl (in awe): Oh my.What are those huge thingys?
Boy (cuppin 'em): These? These be my jiggly booglies.
Girl (gigglin): Jiggly boo-?
Boy: Thats right, jiggly booglies. Here kiss 'em.
Boy (cuppin 'em): These? These be my jiggly booglies.
Girl (gigglin): Jiggly boo-?
Boy: Thats right, jiggly booglies. Here kiss 'em.
by NeverMindWho March 25, 2006
(The current definition is wrong - there is no such mass of water with the name 'Arabian Gulf'.).
Bahrain (an island) is a country in the Persian Gulf.
Bahrain (an island) is a country in the Persian Gulf.
by NeverMindWho March 10, 2006
Ned: So doctor is it really baaad?
Dr.Hibbert: Would you call analtosis bad? Ah-heh-heh-heh!
Ned: Darn it doctor! Your little chuckles are quite inappropriate!
Dr.Hibbert: Um sorry about that. Please speak in that direction.
Dr.Hibbert: Would you call analtosis bad? Ah-heh-heh-heh!
Ned: Darn it doctor! Your little chuckles are quite inappropriate!
Dr.Hibbert: Um sorry about that. Please speak in that direction.
by NeverMindWho March 02, 2006
If you give my chimpanzee a banana you will make him a happy chimpanzee.
My chimpanzee sign-languaged that if you call him, George Walker Bush again, he's gonna APE yo ass.
My chimpanzee sign-languaged that if you call him, George Walker Bush again, he's gonna APE yo ass.
by NeverMindWho March 06, 2006