<%@LANGUAGE="JAVASCRIPT" CODEPAGE="1252"%> determining sex

Genetic 342 A&B

Kenneth G Wilson

Professory of Botany

Sex Determination - XY

   
xy egg sperm
Sex Chromosome of Male is the Y and the female is X The Gamete of the male is the sperm and the female is the "egg"

Sex determination in fowls, pill bugs and moths

ZZ is male ZW is female
homogametic sex hetero gametic sex

Environmental determination of sex Crepidula fornicata - slipper limpet

limpet

Sex Wars - Pill bug males converted to females by bacteria

oliver

This is our friend Oliver the parrotlet,

Oliver is a true parrot,

the smallest in the world.