Girl/Boy Question.. help?

Question

I know that the sperm is the decider of gender, but does it have anything to do with genetics? For instance.. my boyfriends family is split pretty evenly with boys and girls on both sides. Would that make it more likely that are chances are split? (Aside from say, someone who has all brothers or sisters) BTW: Not pregnant yet =(

I am 21 Staci... so next time keep your rude comments to yourself, thanks. I know all about X and Y chromosomes and I know that they are made up of genetics. I don't think you understood my question.

Answer 1

I dont think genetics have anything to do with it, its just whatever little swimmer gets to your egg first!

Answer 2

No, whether there are more girls or boys in your family is irrelevant, everybody's chances are the same.

The reason is that sperm are made by a special division process of a normal male cell.

A male cell has an X and a Y chromosome, and during the special division (which is called meiosis) then each chromosome goes into a seperate cell, then those cells split again, so that there are four cells with half a chromosome.

This means that the products of any single division are always 2 "male" sperm and two "female" sperm.

Because there are even numbers of each kind of sperm, there is always a 50/50 chance. This applies to any human couple, regardless of whether their family has tended to have boys or girls in the past.

NB: In practice, it seems that there is a slightly higher chance of having boys - there are a number of theories as to why this is true, all to do with what happens to the sperm AFTER ejaculation. It doesn't affect your question anyway, as it still applies to everybody!

Answer 3

Genetics have nothing to do with the sex of the child. Actually the chances of having a boy are always a little higher then having a girl also. It is something like 52% boys 48% girls but everyone says 50 50 because it is so close and the chances of miscarrying a boy are higher then miscarrying a girl (for some reason girls fight more). Yes you are right though that the boy chooses the sex due to what makes it to the egg first. Unfortunately the girl always has the X to give so it is completely up to the male gender.

Answer 4

Yes it can be due to genetics (i.e. further than just X and Y) it is thought that in some males the male or female sperm are stronger - that's why you get gender biased families. There are also theories that the woman may have some input, i.e. that the egg may allow one type of sperm over the other. To be fair though I'm not sure how much scientific evidence there is for this.

Answer 5

I think it's just luck of the draw really. I have twin brothers, I am the only girl and my hubby is one of three boys but we had a girl. Some people say that it depends on when you have sex because male sperm swim faster so if you have sex on ovulation day chances are it will be a boy. Female sperm live longer so if you have sex a couple of days before ovulation, there should still be female sperm in there. (sorry too much info). Don't know how true it is tho. Good luck with babymaking-we are still trying!!

Answer 6

Uh the chances of having a boy or girl are ALWAYS 50-50. And it happens to be determined by the X or Y chromosome in the sperm=genetics. How old are you???

I do understand your question: does it have anything to do with genetics=yes X vs Y chromosome. Maybe you meant family history meaning does it run in your family. Answer=NO always 50-50 chance. Sorry your question wording sucks and it sounded like a 7th grade question that should be in the biology section not the pregnancy section. Apparently my biology degree makes me read into your question too much. Pretty sure your response was more rude than my answer.

Answer 7

My husband has 3 brothers and no sisters, I have 3 brothers and 1 sister. One of his brothers has a little boy, my brothers have all girls and 1 boy and im having a girl. so I dont thin genetics has anything to do with it.

Answer 8

yeah I saw a segment on sunrise yesterday morning and they have done research I will add it in a tic I hope it helps...

edit
It has been a wish of men and women since time began. The chance to choose your baby's gender. And permission to eat more chocolate.

Dr John D’Arcy joined us on Sunrise to explore the issue of why altering a female's blood glucose levels around conception time could skew the sex ratio of the resulting babies.

Researchers at University of Pretoria in South Africa have conducted study on mice made findings that may give credence to common belief that expecting mothers who want a boy should eat more red meat and salty snacks and fish, vegetables, chocolates and sweets if they want a girl.

Ths study means a diet high in sugar for the mice led to more female babies and scientists say the same could be true in humans.

The same scientists believe that diet can affect the environment in the womb and can in turn influence the proportion of males and females.

Answer 9

It could do. A man who had all sons might pass on more of a male sperm 'gene' to those sons and therefore they might have predominantly boys and vice versa.

In my immediate family, my father 'sired' one boy and one girl. who went onto have one boy and one girl each.

Same as my husband's parents. One boy and one girl child and now my husband has one boy and one girl.

Where as my half-sister's father had two daughters and my sister has had all girls too (3).

Coincendence ......? Who knows !!

Best of luck getting a definitive answer for that one.

Answer 10

not sureif i can help but my mon had three boys and i am the only girl my brother (19) he had a little girl.. My older brother is having a boy and i am having a boy so i am not sure! now girls dont run in my family but girls run in my youngest brother childs mother family