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It is because males produce sperm cells with the X chromosome and sperm cells with the Y chromosome. If a sperm cell with a Y chromosome fertilizes an egg, then that child would be a boy, as the Y chromosome produces male offspring. If a sperm cell with a X chromosome fertilizes an egg, then the child would be a girl, as X is the female chromosome. The mother always passes on a X chromosome, but the father can pass on an X or a Y and thus determine the sex of the baby.
What else can I help you with?
What what are sex chromosomes?
XX for a girl and XY for a boy
How are chromosomes organized?
Chromosomes are organized as thread-like structures made of DNA and proteins. They are found in the nucleus of cells and are divided into regions called genes, which contain the instructions for making proteins. Chromosomes come in pairs, with one inherited from each parent.
Is this sentence true or false. Genes on chromosomes determine whether a baby is a boy or girl?
True. The presence of certain genes on the sex chromosomes, specifically the Y chromosome, determines the sex of a baby. An individual with XY chromosomes will develop as a boy, while an individual with XX chromosomes will develop as a girl.
Do genes on a chromosomes determine whether a baby is a boy or a girl?
yes particular one's do which are the xy chromasones
What are the 2 sex chromosomes?
The two sex chromosomes are X and Y. Typically, females have two X chromosomes (XX) and males have one X and one Y chromosome (XY).
Do x and x chromosomes make a baby girl?
yes and xy makes a boy
How do you get chromosome?
boy meets girl, girl meets boy the baby gets chromosomes
What what are sex chromosomes?
XX for a girl and XY for a boy
What decides if a baby going to be a boy or a girl?
The chromosomes in the sperm determine whether the baby is going to be a girl or boy.
Can parents pick if they want a boy or a girl?
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.
Why is a girl a girl instead of a boy?
A girl is biologically female due to the presence of two X chromosomes, while a boy is biologically male due to having one X and one Y chromosome. These chromosomes determine the development of sex characteristics in individuals.
How are chromosomes organized?
Chromosomes are organized as thread-like structures made of DNA and proteins. They are found in the nucleus of cells and are divided into regions called genes, which contain the instructions for making proteins. Chromosomes come in pairs, with one inherited from each parent.
Is this sentence true or false. Genes on chromosomes determine whether a baby is a boy or girl?
True. The presence of certain genes on the sex chromosomes, specifically the Y chromosome, determines the sex of a baby. An individual with XY chromosomes will develop as a boy, while an individual with XX chromosomes will develop as a girl.
How do chromosomes make cells different?
Chromosomes desides a lot of things about the offspring. It could be a boy (XY) or a girl (XX). They can give babies diseases or red hair, short legs or cleft palettes etc.
How do you be a boy on It Girl on Facebook?
You can not make a boy avatar on It Girl. Even if a boy plays, they can only make girl avatars.
What are the chances of having a girl or boy?
1. The Chances of having a baby boy and a baby girl is 50/50 because the girls have XX Chromosomes and Boys have XY Chromosomes it's a 50% chance that it sprays some liquid to get the Y Chromosomes so either way its 50/50 chance
Can you make a girl and a boy Sim twins?
Yes you can make girl and boy twins
