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  2. 46,XX/46,XY - Wikipedia

    en.wikipedia.org/wiki/46,XX/46,XY

    46,XX/46,XY chimeric or mosaic is associated with a wide spectrum of different physical presentations, with cases ranging from having a completely normal male or female phenotype [7] [8] [9] to some cases having ovotesticular syndrome. Due to this variation, genetic testing is the only way to reliably make a diagnosis.

  3. Forty Six & 2 - Wikipedia

    en.wikipedia.org/wiki/Forty_Six_&_2

    Forty Six & 2" is a song by American rock band Tool. It was released as the fourth single from their second studio album Ænima in 1996 and received radio airplay. [ 1 ] In March 2023, Rolling Stone ranked "Forty Six & 2" at number 53 on their "100 Greatest Heavy Metal Songs of All Time" list.

  4. List of organisms by chromosome count - Wikipedia

    en.wikipedia.org/wiki/List_of_organisms_by...

    The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living organisms.This number, along with the visual appearance of the chromosome, is known as the karyotype, [1] [2] [3] and can be found by looking at the chromosomes through a microscope.

  5. Human embryonic development - Wikipedia

    en.wikipedia.org/wiki/Human_embryonic_development

    The zygote contains the combined genetic material carried by both the male and female gametes which consists of the 23 chromosomes from the nucleus of the ovum and the 23 chromosomes from the nucleus of the sperm. The 46 chromosomes undergo changes prior to the mitotic division which leads to the formation of the embryo having two cells.

  6. XX male syndrome - Wikipedia

    en.wikipedia.org/wiki/XX_male_syndrome

    The tip of the Y chromosome contains the SRY gene and, during recombination, a translocation occurs in which the SRY gene becomes part of the X chromosome. [15] [26] If a fetus is conceived from a sperm cell with an X chromosome bearing the SRY gene, it will be a genetic-male and will develop as a male despite not having a Y chromosome. This ...

  7. Chromosome 2 - Wikipedia

    en.wikipedia.org/wiki/Chromosome_2

    Chromosome 2 is one of the twenty-three pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 2 is the second-largest human chromosome, spanning more than 242 million base pairs [4] and representing almost eight percent of the total DNA in human cells. Chromosome 2 contains the HOXD homeobox gene cluster ...

  8. 45,X/46,XY mosaicism - Wikipedia

    en.wikipedia.org/wiki/45,X/46,XY_mosaicism

    In a normal situation, all the cells in an individual will have 46 chromosomes, with one being an X and one a Y or with two Xs. However, sometimes during the early copying processes of DNA replication and cell division, one chromosome can be lost. In 45,X/46,XY, most or all of the Y chromosome is lost in one of the newly created cells.

  9. XXYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XXYY_syndrome

    48,XXYY syndrome is a condition related to the X and Y chromosomes (the sex chromosomes). People normally have 46 chromosomes in each cell. Two of the 46 chromosomes, known as X and Y, are called sex chromosomes because they help determine whether a person will develop male or female sex characteristics. Females typically have two X chromosomes ...