i was wondering if it is true that your a boy before ur born and then u turn into an girl if u have resources please list
2006-10-20 07:27:42 · 20 answers · asked by Destiny 1 in Health ➔ Other - Health
No! sex of the baby is determined by the chromosomes from the sperm.
2006-10-20 07:34:36 · answer #1 · answered by June smiles 7 · 0⤊ 0⤋
You are a boy or a girl from fertilization...it's a chromosome thing.
It is decided by the sperm. At the beginning the genitalia has the appearance of female genitalia, and develops into male or female in about the 8th week. No resources just basic biology.
2006-10-20 07:30:15 · answer #2 · answered by Anonymous · 1⤊ 0⤋
No you’re not a boy before you are born, but the opposite all fetuses are female at the beginning stages and by how much testosterone is given off and in their genetic make up is when some fetus become boys... haha boys are like a deformed chromosome make up. like a broken xx that’s why they are xy. They are missing a leg on their last x chromosome.
2006-10-20 07:35:29 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Prior to the introduction of androgen early in the fetal stage, the fetus of both male and female are nearly indistinguishable. However, the chromosonal makeup of the zygote is what determines the sex (i.e. the female egg is always an "X"; the male sperm is either an "X" for a female or a "Y" for a male).
2006-10-20 07:31:33 · answer #4 · answered by Irish Eyes 4 · 1⤊ 0⤋
You are hormonally both at that time in the amniotic sac, until the development of the sex glands are formed is the only time one can determine your gender. The human species does not begin a female, then become a male. But some fish do.
2006-10-20 07:31:15 · answer #5 · answered by Anonymous · 0⤊ 0⤋
All fetuses start out female. During development, the Y chromosome kicks in and turns us male.
2006-10-20 07:34:11 · answer #6 · answered by Anonymous · 0⤊ 0⤋
i don't believe so.....the reason all people have nipples is because we all start out the same then at some point during your mothers pregnancy a certain hormone is produced and then the male or female reproductive organs develop but NO we are not all male or female
2006-10-20 07:41:52 · answer #7 · answered by ELIZY 4 · 0⤊ 0⤋
Well, actually... at conception the fetus is male or female but at first, the genitalia will appear to be female...
Hormones then kick in and produce androgens which then separate the men... from the girls.
2006-10-20 07:32:02 · answer #8 · answered by misskate12001 6 · 1⤊ 0⤋
Look up the development of a child during pregnancy
2006-10-20 07:30:00 · answer #9 · answered by Abby 6 · 1⤊ 0⤋
Your sex body parts are present by 8 weeks. They can be seen around 16 weeks. You can clearly see a penis or a bump for a vagina.
2006-10-20 07:29:36 · answer #10 · answered by Anonymous · 0⤊ 0⤋
all vertebrate animals are inherently female, it takes a shot of hormones at the precise time to make an animal male
2006-10-20 07:37:42 · answer #11 · answered by kapute2 5 · 0⤊ 0⤋