Download now. Open iCloud for Windows and sign in with the Apple ID you used to create your iCloud account. Select the iCloud services youâd like to enable and click Apply. When you enable iCloud Drive and Photos, iCloud for Windows creates new folders for those files in Windows Explorer.
More than 95% of the Y chromosome is male-specific (4) and a single copy of the Y chromosome is able to induce testicular differentiation of the embryonic gonad. The Y chromosome acts as a dominant inducer of male phenotype and individuals having four X chromosomes and one Y chromosome (49XXXXY) are phenotypically male. (5) When a Y chromosome is present, early embryonic testes develop around the 10th week of pregnancy.
Genetic Components of Sex and Gender. Humans are born with 46 chromosomes in 23 pairs. The X and Y chromosomes determine a personâs sex. Most women are 46XX and most men are 46XY.