Two Types of Reproduction

Asexual Reproduction used by some plant and invertebrate species requires 1 parent offspring are genetically identical to the parent uses body cells

Body Cells called somatic cells (somato- means “body”) body cells are diploid = contain 2 sets (pairs) of chromosomes (diplo- means “double”) made by the process of mitosis throughout the entire body

Steps of Asexual Reproduction Body cells are made by mitosis

Steps of Asexual Reproduction The organism undergoes binary fission, budding or regeneration to create an offspring

Sexual Reproduction used by most species requires 2 parents offspring are genetically different from the parents uses sex cells

Sex Cells called gametes = egg and sperm cells (gamo- means “sex cell”) sex cells are haploid = contain 1 set (single) of chromosomes (haplo- means “single”) made by the process of meiosis inside reproductive organs

Steps of Sexual Reproduction Sex cells are made by meiosis (like “double mitosis”) Cells divide twice

Steps of Sexual Reproduction Male & female sex cells come together to form one body cell (called a zygote) Cell from mom Cell from dad zygote

Steps of Sexual Reproduction The zygote undergoes mitosis repeatedly until it develops into a complete organism Etc…

Mitosis made my-TOES-es Memory Phrase Meosis made ME-osis Mitosis made my-TOES-es