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Its not a guarantee, but generally it holds true. There are some instances when the part of the y chromosome which determines sex is tacked onto an X chromosome. This can result in XX males. In general though the Y chromosome is responsible for making a biological male.

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What gene determines whether a human will develop into a male or female?

The Y-chromosome. Think of it this way: Each person contains the genes to be a female. These genes are inherited on the X-chromosome which every normal person has. However, if you have a Y-chromosome, you now posses the genes to make a male, and are thus will be a male.


How the sex of a person determined?

Human cells contain 23 pairs of chromosomes for a total of 46. There are 22 pairs of autosomes and one pair of sex chromosomes. The sex chromosomes are the X chromosome and the Y chromosome. If you are male you have the XY chromosome.. making you a male. If you are female you have the XX chromosome.. making you a female. It all depends on the father, if the father gives an X chromosome... you have a girl. Because it combines with the mother's X chromosome.. creating XX(a female) If the father give a Y chromosome.. you a have a boy. It combines with the mothers X chromosomes.. creating XY(a male)


How is the sex of a person is determined?

Human cells contain 23 pairs of chromosomes for a total of 46. There are 22 pairs of autosomes and one pair of sex chromosomes. The sex chromosomes are the X chromosome and the Y chromosome. If you are male you have the XY chromosome.. making you a male. If you are female you have the XX chromosome.. making you a female. It all depends on the father, if the father gives an X chromosome... you have a girl. Because it combines with the mother's X chromosome.. creating XX(a female) If the father give a Y chromosome.. you a have a boy. It combines with the mothers X chromosomes.. creating XY(a male)


What sex will a person be if the father contributes an X chromosome?

Type your answer here... Male,if the mothe contributes a Y


What is the chromosome pair XX?

Generally, since the sex determining region is on the Y chromosome, this person is male. The SRY is a gene control area that determines male sex. Female is the default body plan in humans; males are made.


Name one pair of chromosomes not homologous in a normal karyotype?

Sex chromosomes X and Y are not homologous in a normal karyotype. This pair of chromosomes determines an individual's biological sex, with females having two X chromosomes and males having one X and one Y chromosome.


If a person inherits two X chromosomes that person will be?

If someone ends up with two x chromosomes (XX) Then they are a girl. If a person has one X chromosome and one Y chromosome(XY) then they are a boy. the men decide what sex the baby is since they have both an x and y. the women gives an x all the time.


How can you tell the sex of a person by looking at that person karyotype?

A male would have an X chromosome that literally looks like an X and Y chromosome that still resembles a X but is smaller like a lowercase x. A female would have two X chromosomes


What is the sex of a person with x chromosomes?

The person would normally be female; however, males with Klinefelter's syndrome have at least two X chromosomes and at least one Y chromosome.


What is the sex of the person with two X chromosomes?

The person would normally be female; however, males with Klinefelter's syndrome have at least two X chromosomes and at least one Y chromosome.


What is the role of sex chromosomes in the control of gender and inheritance of hemophilia?

There are two sex chromosomes - X and Y. A person with two X chromosomes is female and a person with one X chromosome and one Y chromosome is male. One sex chromosome is inherited from each parent, with the sperm determining a child's sex.Hemophilia is a sex-linked condition as these genes are located on a sex chromosome (i.e. Y chromosome). Males are hence more prone to hemophilia as they only have one X chromosome. The sons of a carrier female have a 50% chance of suffering from hemophilia. The daughters of a hemophiliac father and a carrier mother may be affected, where she receives an affected X from both parents.


What are the sex chromosomes for the male and female?

X and Y chromosomes contain the genes that will determine a persons sex. The pairing of the two that will allow the person to be a male is (X,Y) and if the person is to be a female the pattern will be (X,X). In terms of size the (Y) chromosomes is smaller than the (X) but the over all shape of the chromosomes are the same.