Meiosis 2

1
Meiosis 2
2
Prophase 2 ?????????????????????????????? ????????
??????????????????????? ????????????????
3
Metaphase 2 ????????????????????????????????? ????
???????? Spindle fiber
4
Anaphase 2 ???????????????????????? ??????????????
??????????????
5
Telophase 2 ???????????????????????????? ????????
???????????????????? ??????????????????????
6
(No Transcript)
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(No Transcript)
8
(No Transcript)
9
(No Transcript)
10
2n
n
n
n
11
???????????????????????????? ????????????????????
??????
??????????????? 1 ???????? ???????????? 25
???????? 2544

• Metaphase 1
• Anaphase 1
• Metaphase 2
• Anaphase 2
• Gametes ???????????????????????

12
2. ???????????? genotype ??? phenotype ??????
??????????????????????
??? AaBBEe X AabbEE ???

• A ????????????????? a ??????????????
  (????complete dominance)
• B ??????????????? b ?????????????
  (???? incomplete dominance ) (??????? Bb
  ???????????????)
• E ????????????? e ?????????????
  (????complete dominance)