A girl has 2 numbers of X chromosomes. Ex: XX = girl A boy has 2 different chromosomes than a girl. He would have one X chromosome and one Y chromosomes. Ex: XY = boy All the chromosomes are to determine a childs gender of a boy or a girl.
it would be a girl
If it is a boy, the two chromosomes are "XY" If it is a girl, the two chromosomes are "XX"
Most do but in case of certain problems with the parents chromosomes (such as having XXX chromosomes), the woman would not grow boobs and be infertile.
Girl Boy Girl Boy
It is impossible for a brother and sister to have exactly the same chromosomes as the sex or gender chromosomes would have to be different for them to be boy and girl. Females have two X chromosomes and males an X ans a Y. This is why identical twins are always the same sex. Nix
X and Y chromosomes. these chromosomes are what code for your gender. XX is a girl and XY is a boy.
Each of her cells should have 46 chromosomes, with the exeption of reproductive cells. Those have 23 chromosomes.
The chromosomes are called the X and Y chromosomes. If it are two XX then it is a girl if there are an XY then it is a boy. As a type of chromosome, they are referred to as the sex chromosomes.
Unfortunately, no they cannot. It depends on the mother chromosomes (XX) and the father chromosomes(XY). The chromosomes from the father is basically the only chromosomes to detect the sex of the baby. Boy or Girl. If a mother's X chromosome meets with the fathers X chromosome, it will be a girl. If a mothers chromosome X meets with the father Y chromosome, it will be a boy.
Any amount is possible of either. girl boy boy girl girl boy girl girl girl boy boy boy boy boy girl ... etc... there are many combinations
When xx chromosomes meet, then girl will be the sex of the baby.
46 chromosomes.... but regarding to sex cells theres 23...
boy meets girl, girl meets boy the baby gets chromosomes
it depends on the chromosomes in the MALE. in females there are xx chromosomes, and in men there are xx AND xy chromosomes, so if xx chromosomes meet then its a girl, if xy chromosomes meet with an xx chromosone in the women at the ovum, then there will be a girl! josh Rhodes your welcome :) ---- Just an additinal, there should be 46 chromosomes to have a normal baby , 23 from male and 23 from female.
i think it's x or y
A child's sex is determined if he has XY chromosomes or she has XX chromosomes. So in general the statement is true.
Because the child's sex is determined by a pair of chromosomes, called X and Y. Each parent contributes one of the chromosomes. Females have nothing but X's, so they can contribute only an X. Males have an X and a Y. The male can contribute either one; it's a toss-up. If the male contributes an X, the result is XX, a girl. If the male contributes a Y, the result is XY, a boy.
Boys have one x chromosome and a y chromosome, whereas a girl has two x chromosomes.
XX for a girl and XY for a boy
They tell you whether you are a boy or a girl. xx is a girl and xy is a boy.
An example of a gene would be the X and Y chromosomes carried by the father. If the father can pass either gene to his offspring to get either a girl or a boy.
The chromosomes in the sperm determine whether the baby is going to be a girl or boy.
That person is a girl.
If a baby gets one X and one Y chromosome, it is a boy. If it gets two X chromosomes, it is a girl.