Offset of water hyacinth (Terror of Bengal) : Offset of water hyacinth (Terror of Bengal)
Eyes of potato : Eyes of potato
Rhizome development : Rhizome development
A Rhizome of ginger : A Rhizome of ginger
Agave with bulbils : Agave with bulbils
Stem bulbil of lily : Stem bulbil of lily
Leaves of Kalanchoe : Leaves of Kalanchoe
PARTHENOGENESIS(Parthenos = Virgin) : PARTHENOGENESIS(Parthenos = Virgin) = Development without sperm
Individuals formed are called PARTHENOTES
Parthenogenesis : Parthenogenesis The eggs produced by females develop directly into adults without being fertilized by sperm
This process is called parthenogenesis
Aphid : Aphid Babyaphid
PARTHENOGENESIS : PARTHENOGENESIS Artificial Natural
Egg of sea Urchin Regular feature in
develops by salt some APHIDS, ROTIFERS,
BESS, WASPS, ANTS.
Frogs egg - if pricked
by needle
Slide 12 : DIPLOID HAPLOID
(THELOTOKY / THELYTOKY) (ARRHENOUSTOKY)
No reduction division -Male haploids
or develop from
2nd polar body fuses unfertilized egg
Rotifers
Lacerta saxicola Bees,
americana Honey bees
Arachnids (Ticks/mites)
Slide 13 : Complete Incomplete
(=Total or Obligatory) (=Cyclical or Fecultative)
Only method Alternate sexual with asexual methods
Lacerta...
Only population. Gall flies
Aphids
Rotifers
Aphids giving babies parthenogenetically : Aphids giving babies parthenogenetically Leaf insects reproduce parthenogenetically