- Thread starter blackram
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ancing:
J
Jesus Quintana
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Especially if its a hot thai chick.
B
Boing
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HoneyBee said:
How many joints have you smoked? -/It wasn't me:-/
LickingGravity
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SillyGirl said:
Waste of perfectly good nipples I think.
SillyGirl said:
actually, it is my understanding that they don't start our female, they all start out asexual, that's why we both have nipples and why both sex organs are very similar....
Then the x or y chormosones kick in and things start to develope one way or the other.....
blackram
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- #11
In the womb, early on, I don't think you can say that there is any sex determinable. The early stages, the gonads look closer to female than male, but that's only because female gonads are internal, and it's not possible to tell internal organs apart from non-existent organs.
At fertilization the sperm delivers either an X chromosome or a Y chromosome to the egg which contains the X chromosome. At the biological level, it was always my understanding if the male delivers the X chromosome the sex is female, if Y, the sex is male. Of course there are exceptions that can occur.
From the internet.
All fetus' are female for the 1st 6 weeks of pregnancy.. It is also true, that gender is predetermined at the moment of conception, and that comes into play after 6 weeks, if the baby is going to be male, the genitals form into male parts, rather than staying female! You can probably find this info in any anatomy and physiology book...!!
There is no new individual life possible until that one sperm penetrates the egg. Eggs are all female. It is the sperm which decides the sex of the zygote/fetus/infant/person.
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""Even though a child's ultimate sex is determined at conception, an embryo doesn't start developing into a boy or girl until about 6 weeks of pregnancy. If the child inherited a Y chromosome from his father, a gene on the Y called the SRY gene turns on. This gene is kind of a master switch that turns on all the other genes necessary to become a boy. If this gene is not present, the embryo develops as a girl. That sounds very simple, but there a many things that can go wrong in this process. Even though the SRY turns on the other genes, if any of them are mutated, full sexual phenotype may not develop. For example, testosterone, a male hormone, is responsible for beginning the development of male characteristics. If this gene is mutated or the gene for their cell receptors is mutated, male development won't begin and the child will be born looking like a female. ""
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Biologically, yes. Genetically, no. All of the females eggs start out "female" (x chromosome). All male's sperm start out either "male or female" ( y or x chromosome). The sperm is what determines sex. On the onset of conceiving the fetus is either male, or female. This can be tested through DNA. Developmentally all fetuses must go through the same process, which is why males have nipples (they are developed before other sexual organs). It is the testosterone (at about week 10) which gives male fetuses their traits.
All fetus' are female for the 1st 6 weeks of pregnancy.. It is also true, that gender is predetermined at the moment of conception, and that comes into play after 6 weeks, if the baby is going to be male, the genitals form into male parts, rather than staying female! You can probably find this info in any anatomy and physiology book...!!
There is no new individual life possible until that one sperm penetrates the egg. Eggs are all female. It is the sperm which decides the sex of the zygote/fetus/infant/person.
-------------
""Even though a child's ultimate sex is determined at conception, an embryo doesn't start developing into a boy or girl until about 6 weeks of pregnancy. If the child inherited a Y chromosome from his father, a gene on the Y called the SRY gene turns on. This gene is kind of a master switch that turns on all the other genes necessary to become a boy. If this gene is not present, the embryo develops as a girl. That sounds very simple, but there a many things that can go wrong in this process. Even though the SRY turns on the other genes, if any of them are mutated, full sexual phenotype may not develop. For example, testosterone, a male hormone, is responsible for beginning the development of male characteristics. If this gene is mutated or the gene for their cell receptors is mutated, male development won't begin and the child will be born looking like a female. ""
-------
Biologically, yes. Genetically, no. All of the females eggs start out "female" (x chromosome). All male's sperm start out either "male or female" ( y or x chromosome). The sperm is what determines sex. On the onset of conceiving the fetus is either male, or female. This can be tested through DNA. Developmentally all fetuses must go through the same process, which is why males have nipples (they are developed before other sexual organs). It is the testosterone (at about week 10) which gives male fetuses their traits.
well curly, those links kind of contradict each other....the first two says all fetus are female until 6 weeks, the other says "at conception"......
going to have to look into this......(not like it is any big deal lol like I cared when I was 1 week old?)
going to have to look into this......(not like it is any big deal lol like I cared when I was 1 week old?)
H
HOF
Guest
Entirely new concept of fucking their brains out!
