You mean to say can intense exercise change a female to a male.
Now I haven't read every medical journal, but I seriously doubt a 30 minute run has caused a change in gender in the past, nor will it ever.
No, intense exercise cannot change one's genotype from XX to XY. Genotypes are determined at conception and remain the same throughout a person's life. Exercise can influence gene expression and certain physical traits, but it cannot alter a person's genetic makeup.
The genotype that typically results in a human female is XX. This means that females have two X chromosomes.
XX
Males typically have an XY genotype, while females typically have an XX genotype. This refers to the combination of sex chromosomes (X and Y) that determine an individual's sex.
A male grasshopper has two different sex chromosomes, XY, while a female grasshopper has two of the same sex chromosomes, XX. This difference in sex chromosome composition determines the sex of the grasshopper.
A normal female genotype typically has two X chromosomes, represented as XX. These chromosomes determine the female sex characteristics and reproductive system development.
XX
XX
The genotype that typically results in a human female is XX. This means that females have two X chromosomes.
XX
Males typically have an XY genotype, while females typically have an XX genotype. This refers to the combination of sex chromosomes (X and Y) that determine an individual's sex.
That is not public information but her genotype is probably XX like most females.
XX
The genotype for a male is XY. A female is XX. The 23rd homologous pair is the sex gene that determines this.
In humans, the genotype xx typically results in a female individual. This genotype indicates that the person has two X chromosomes, which is the sex chromosome combination typical of females.
a biologically male individual. The XY genotype typically refers to the genetic makeup of males in humans, where X represents one of the sex chromosomes inherited from the mother and Y represents the sex chromosome inherited from the father.
a capital letter example: Bb or AA or Xx
Dance. Have you not seen them performing!?!?!?!?!!? xx