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XX

XX

6 5.3
The usual pair of two X chromosomes found in most female cells
  • noun
  • Specialized
translation icon : XX
  • Kate -- sex is the biological state of having XY or XX chromosomes, while gender is identity.
  • XX chromosomes
  • XX females
  • normal 46, XX

That is, they will have some embryos that are XX, some embryos that are XY.

Examples

  • Girls born with this condition have an XX genotype and normal ovaries.

    Academic text (2002)
  • Fausto-Sterling defines all sex chromosome complements other than XX or XY as intersex.

    Academic text (2002)
  • XY for a boy and XX for a girl.

  • That is, they will have some embryos that are XX, some embryos that are XY.

  • People with XX chromosomes are biologically female, have ovaries, and grow breasts.

  • A genetically female child (i.e., with XX chromosomes) may be born with external genitalia that appear to be those of a normal male.

    Academic text (2002)
  • In typical female mammals, the cell composition includes an XX chromosome pair, determining their female sex.

  • Studies show that individuals with an XX chromosome configuration develop female reproductive systems.

  • The genetic blueprint of females in most species consists of an XX chromosome set.

Surface Forms

XX singular
XXs plural

Etymology

XX in biology comes from using the letter X as the name for one type of sex chromosome, so having two Xs ('XX') usually means 'female' in many mammals.