Meiosis Mitosis Male (XY) = Testes What kind of cells? Somatic cells Female (XX) = Ovaries Male (XY) = puberty When does this Any time occur? Female (XX) = before birth # of Divisions 2 1 (Draw picture) Male (XY) = 4 sperm # of Daughter cells 2 Female (XX) = 1 viable egg Half as many as parent cell Same as parent cell # of Chromosomes haploid or N diploid or 2N In humans 23 In humans 46 Type of Reproduction Sexual Asexual Daughter cells Daughter cells identical / not identical identical / not identical Genetic Composition to parent cell to parent cell Genetic variation Pairing of YES / NO YES / NO Homologous Crossing over of genes Chromosomes Production of gametes: Growth, repair; development of Function/Importance eggs and sperm adult from zygote
Meiosis Mitosis What kind of cells? Male (XY) = Testes Female (XX) = Ovaries Somatic cells When does this occur? Male (XY) = puberty Female (XX) = before birth Any time # of Divisions (Draw picture) 2 1 # of Daughter cells Male (XY) = 4 sperm Female (XX) = 1 viable egg 2 # of Chromosomes Half as many as parent cell haploid or N In humans 23 Same as parent cell diploid or 2N In humans 46 Type of Reproduction Sexual Asexual Genetic Composition Daughter cells identical / not identical to parent cell Genetic variation Daughter cells identical / not identical to parent cell Pairing of Homologous Chromosomes YES / NO Crossing over of genes YES / NO Function/Importance Production of gametes: eggs and sperm Growth, repair; development of adult from zygote
bonus_meiosis_notes_kung.docx