Chapter 13 - Meiosis Notes

Chapter 13 - Meiosis Notes - Chapter13MEIOSIS

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
C    hapter 13-MEIOSIS     In animals and plants GAMETES = reproductive cells ASEXUAL reproduction  =  ONE  parent    offspring  genetically  identical  to parent        CLONE  = group  of genetically  identical  individuals SEXUAL reproduction  =  TWO  parents    offspring  genetically  different  from  parents  and  other  offspring   KARYOTYPE  = picture  of an  organism’s  chromo s o m e s Human  SOMATIC  (body)  cells  have  46  chromo s o m e s  (23  pairs) SEX CHROMOSOMES  (X  and  y) MALES  = Xy          FEMALES=  XX 44   AUTOSOMES  = non- sex  chromo s o m e s GAMETES SPERMATOGENESIS (in TESTES) Meiosis  produce s  4 cells;  maturation  adds  tails    4 spermatids OOGENESIS ( in OVARIES) Cytoplasm  divides  unevenly  during  meiosis   produces  1 egg  and  3 POLAR  BODIES  (which  degen erate) Gives  egg  the  best  start
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/14/2012 for the course BIO 151 taught by Professor Grinblat during the Fall '08 term at Wisconsin.

Page1 / 3

Chapter 13 - Meiosis Notes - Chapter13MEIOSIS

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online