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In humans, it is the male's sperm that determines the sex of the children. A woman has two X chromosomes, while a man has an X and a Y chromosome. So the man passes on the X or the Y. So if the man passes on the X, then the baby is a girl. If the man passes on the Y, the child is a boy.
If you mean how doctors determine this, they usually just look at the genitals and mark the baby down as a boy or a girl based on what they see. On an ultrasound, the doctor or lab technician goes by what they see on the film. Other tests look at the chromosomes or genes.
Hailee Hills
Wiki User
∙ 10y agoThe sex of a human offspring is determined by the sperm of the father.
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What is a baby's gender if he or she has XXY sex chromosomes?
Male - in humans the sex is determined by the presence of a Y chromosome. In other animals sex can be determined by the ratio of sex chromosomes, or the total number of chromosomes.
How do you know the crocodiles gender?
Crocodile embryos do not have sex chromosomes (which determine the sex of a child in humans) and sex is not determined genetically in crocodiles. The sex of a crocodile is determined by temperature -- with males around 31.6 degrees Celsius (89 degrees Fahrenheit) and with females at slightly lower or higher temperature.
What is the difference between 'sex-liked' and 'sex-determined'?
Sex-liked means liking sex and sex determined is the resolution to have sex.
What is the sex determiner?
Sex is determined by the 23rd pair of chromosomes (in humans). You get an X chromosome from your mother and an X or Y chromosome from your father. If you are XX, you are female. If you are XY, you are male.
Is the sex of a second child determined by the sex of the first?
Are you asking if the sex of the second child is determined by the sex of the first child? No, naturally its a fifty-fifty chance.
In what condition is crocodile sex formed?
The sex of developing crocodilians is determined by the incubation temperature of the eggs. This means crocodilians do not have genetic sex determination, but instead have a form of environmental sex determination which is based upon the temperature embryos are subjected to early in their development. Crocodile embryos do not have sex chromosomes, and unlike humans sex is not determined genetically. Sex is determined by temperature, with males produced at around 31.6 °C, and females produced at slightly lower and higher temperatures. The average incubation period is around 80 days, and also is dependent upon temperature.
The sex of a child is determined by?
In humans the sex of the offspring is determined by which sperm is able to fertilize the ovum. If a sperm containing the X chromosome fertilizes the ovum, a female offspring results. If a sperm containing the Y chromosome fertilizes the ovum, a male offspring results
How early is your sex determined?
conception
What how is gender determined?
Gender is typically determined by biological factors, such as chromosomes (XX for female, XY for male) and physical characteristics. Gender can also be influenced by social and cultural norms, personal identity, and self-expression. It is important to recognize that gender is a complex and multifaceted concept that can vary among individuals.
What week of fetal life is the sex of an offspring determined?
At about the 8th week of pregnancy the sex determining region turns on as a master gene directing a series of fetal and hormonal changes. The genitalia are determined to be male ( female genitalia are suppressed ) and the fetal hormone surge begins. ( Testosterone ) As you should know female is the default sex in humans and without the SRY ( sex determining region ) the fetus would develope as a female.
How many chromosome do humans have in their sex cells?
Humans have 23 chromosomes in their sex cells.
How sex is determined in Valanga Sp with regard to its chromosome?
Valanga sp. sex is determined by using the XO system. This system use only one type of sex chromosome, the X. Females are XX while males have only one sex chromosome (XO). Sex of the offspring is determined by whether the sperm cell contain and X chromosome or no sex chromosome.
