Gender determination, computer artwork. Gender is determined by the sex chromosomes, X and Y. Females have 2 X chromosomes and men an X and a Y chromo

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Gender determination, computer artwork. Gender is determined by the sex chromosomes, X and Y. Females have 2 X chromosomes and men an X and a Y chromosome. Cells in the ovaries and testes undergo meiosis producing 4 cells (only 2 of each seen here) with half the number of chromosomes, and hence only 1 sex chromosome each. The female sex cell is an egg (pink) and the male a sperm (with tail). During fertilisation a male and female gamete fuse to form a zygote, restoring the full number of chromosomes. The sex of the zygote is determined by the sex chromosome carried by the sperm cell.

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Size: 4300px × 5540px
Photo credit: © DAVID NICHOLLS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: anatomy, artwork, biological, biology, body, cell, cells, chromosome, chromosomes, computer, determination, dividing, division, egg, eggs, female, gamete, gametes, gametogenesis, gender, genetics, hereditary, human, illustration, male, meiosis, meiotic, nuclear, oocyte, oocytes, reproducing, reproduction, sex, sperm, spermatazoan, spermatozoa, spermatozoon, sperms, zygote, zygotes