Sex Determination and Gametogenesis

SEX DETERMINATION

Chromosomal Sex Determination

The Mammalian Pattern of Sex Determination

  • Gonadal sex determination in mammals
  • Secondary sex determination in mammals: Hormonal regulation of the sexual phenotype

Chromosomal Sex Determination in Drosophila

  • Sex determination by dosage of X
  • The Sex-lethal gene
  • Doublesex: The switch gene for sex determination

Environmental Sex Determination

Gametogenesis in Animals

  • PGCs in mammals: From genital ridge to gonads
  • Meiosis: The intertwining of life cycles
  • Spermatogenesis in mammals
  • Oogenesis in mammals

SEX DETERMINATION AND GAMETOGENESIS IN ANGIOSPERM PLANTS

Sex Determination

Gametogenesis

  • Pollen
  • The ovule