humans sex gametes each have the haploid number of chromosomes(23) compared to a normal cell. when the sperm feritilises the egg, the number is doubled to form the full cell. the 23rd pair of the chromosome is the one that determines th sex of the foetus. if it is a "XX" chromosome, it will be a girl and if its a "XY" chromosome, it will be a boy.
By the sex determining region (SRY) on the Y chromosome.
XX is female
XY is male
The default sex in humans us female. At about eight weeks into gestation the SRY, a control gene, turns on if a Y chromosome is in the fetus and then several processes take place to " make " a male. The position of the SRY is the important point as some males, very rarely, are XX, as the SRY has migrated to the X chromosome.
The sex of humans is determined by the sex chromosomes given by the child's father. When the sperm fertilizes the egg it is either carrying a X or Y chromosome. For the sex to be female it has two X chromosomes, and a male it is an X and Y. So when the sperm divides it either carries one X or one Y while the mother's eggs all carry an X.
HE has the chromosomes of a male and female, therefore he determines if it will become a male or female. This is also why some males can only have females.
By the male. A female does not have the chromosome for a male (the Y chromosome); a male has both X and Y chromosomes.
What kind of chromosomes are created. A male will be XY and a female will be XX.
If there is doubt (after birth) and the external organs don't give the answer, a DNA test will be done. A boy will have sex chromosomes X and Y while a girl will have X and X.
No, the male determines the sex of a child.
false
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.
The sex chromosomes determine the sex of an organism. In humans, it is the 23 pair. Females pass on either or their X chromosomes, while males pass on either their X or their Y. If the male passes on their X chromosome, the resulting offspring is female. If they pass on their Y chromosome, the resulting offspring is male.
the father does. you see a woman genes are both y and men's genes have an x and a y if the father gives a y it is going to be a girl if he gives it and x it will be a boy. that is what determines sex of an offspring also if you already have some kids that will give you a better guess of what sex the offspring is.
In humans, which sex chromosome determines if an offspring is a male or female?
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
No. it is determined by the male parent's chromosomes.
No. it is determined by the male parent's chromosomes.
No, the male determines the sex of a child.
Humans only pass traits, sex-linked or not, to their offspring. There is no way to pass a trait to anyone except offspring unless through gene implant.
false
I believe it is the first pair of chromosomes that meet.
Each parent sex cell gives 23 chromosomes to their offspring in humans
For humans x or y chromosome from father
it is determined by which parent give the chromosome. if the y chromosome is in it will be a girl and if it will be a boy.
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.