The sex of a baby at fertilization is determined by the chromosomes the baby possesses. If these chromosomes are XY it's a boy. If they are XX, it's a girl.
http://en.wikipedia.org/wiki/XY_sex-determination_system
X and Y chromosomes. XX is a female, XY is a male; however there are various types of intersex conditions that violate this principle.
the father
sex sex
there is a baby
No, sex has no effect on implanation of the egg.
The male sex chromosome is XY, and females are XX. The X comes from the female, and an X or a Y from the male. When they meet, that determines whether the baby will be a boy or a girl.
the father
I had sex with justin bieber and now i have a baby boy
I believe the father of the baby determines the sex of the baby.
The chromosome in the male's gamete determines the gender of the baby. If it is a Y chromosome, the baby will be a boy. If the chromosome is a X, the baby will be a girl.
Yes, the male determines the sex of a baby. He possesses the either X or Y chromosome. The X is a girl I believe & the Y is a boy, I'm pretty sure that that's what they stand for. I'm positive that the male determines the sex of a baby though.
Well, there is fertilization in sexual reproduction, but there is not fertilization in asexual because the female reproductive system needs help with the male reproductive system through sex. Without sex, it is asexual. Females need the males sperm in order to fertilize the baby or plant.
NO
the answer is sex chromosomes
sex sex
I believe you meant to ask is it possible to know the sex of a baby conceived by inviro fertilization also called test tube baby. Of course like a normal baby a test tube baby too has xx or xy chromosomes and the sex can be determined actively while the fetus is growing. Also like a normal baby ultrasonograph can reveal the sex of the child.
In order to physically have a baby, a man would need female hormones, at least one of two functioning ovaries to produce eggs, a uterus for the egg to implant, and a means of fertilization (i.e. sex with a male or medically assisted fertilization).
Fertilization is the joining of egg cell and sperm. It typically happens in the fallopian tubes.