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연관과 교차

연관과 교차. P --- FFii  ffII (frizzled, colored) (normal, white) ↓ test cross ---- FfIi  ffii (frizzled, white) (normal, colored)

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연관과 교차

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  1. 연관과 교차

  2. P --- FFii ffII (frizzled, colored) (normal, white) ↓ test cross ---- FfIi  ffii (frizzled, white) (normal, colored) ↓ Progeny ----- Ffii : FfIi : ffii : ffIi 63 : 18 : 13 : 63 (P) (R) (R) (P) Ratio of Cross-overs; (18+13)/157 100(%) = 19.7%

  3. Frizzle, Crest (FfCc) x Normal, non-crest (ffcc) Frizzle, Crest : Frizzle, Non- : Normal, Crest : Normal, Non- (FfCc) (Ffcc) (ffCc) (ffcc) 36 (Par) 13 (Recomb) 14 (Recomb) 37(Par) Crossing-overs = (13+14)/100 = 0.27, i.e. 27%

  4. 역우,모관 (FfCrcr; FCr/fcr) x 정상우, 비모관 (ffcrcr; fcr/fcr) 역우,모관 : 역우,비모관 : 정상우,모관 : 정상우, 비모관 (FCr/fcr) (Fcr/fcr) (fCr/fcr) (fcr/fcr) 36 (양친형) 13 (교차형) 14 (교차형) 37(양친형) 교차율 = (13+14)/100 = 0.27, 즉 27%

  5. F I Cr Cr F I

  6. 염색체 지도 작성 • 제 1교차율(st - ss) (50+52+5+3)/755 ⅹ100% =14.6% • 제 2교차율(ss - e) (43+41+5+3)/755 ⅹ100% =12.2% 26.8 ss st e 12.2 14.6

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