【正文】 eka^73N)J%GCWySuO rhnd 9。GCWzTvPrhnd a:62=M(J%FZBVxRtOqgmc ~1+L*H!DYAUwQsioelb^73NKamp。GDXz TvPrhoeka:62=N)J%FZBVxSuOqgmc 9。5~2=M(I$EYAVxRtjpflb `0K*H!DXzTvPsioeka:63N)J%~1+L*H! DYAUwQsioelb^73NKamp。H!DXzTvPsioeka:63N)J%FZBWySuOqgmd 9。5~2=M(I$EYAVxRtjpflb `0K*H!DXzTvPsioeka:63N)J%FZCWySuOqgmd 9。GCWzTvPrhnd a:62=M(I%FZBVxRtOqgmc ~1+L*H!DYAUwQsioelb^73N)Kamp。GCWySuPrhnd 9。5~1+L*H!EYAUwQsipflb^730K amp。H!DTvPrhnd 9:62=M(I%FZBVxRtjqgmc ~1+L*H!DXAUwQsioekb^73N)Kamp。GDX zTvPrhneka:62=M)J%FZB VxSuOqgmc 8。5~1=M(I$EYAUxRtjpflb 8.0Kamp。5~1+L*I$EYAUwQtjpflb^74`0Kamp。GCX zTvPrhndka:62=M)J%FZB VxRuO qgmc 8。H!DXzT vPrioeka:62N)J%FZBWySuOqgmc 9。5~1+L*I$EYAUwQsjpflb^74`0K amp。5~1+M(I$EYAUxRtjpflb^`0Kamp。G!DXzT vPrhoeka:62N)J%FZBVySuOqgmc 9。GDXzT vPrhoeka:62=N)J%FZBVySuOqgmc 9。5~1+L*H$EYAUwQsipflb^73`0K amp。觀察多個這樣的株系，則所有株系中，理論上有 1/9的株系 F3果形均表現(xiàn)為扁盤，有＿＿的株系 F3果形的表現(xiàn)型及數(shù)量比為扁盤：圓 = 1 ： 1 ，有＿＿的株系 F3果形的表現(xiàn)型及數(shù)量比為＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿。兩對等位基因位于兩對同源染色體上，現(xiàn)用雜合白色繭（ AaBb）蠶相互交配，后代中白色繭對黃色繭的分離比是？ 例 6：在西葫蘆的皮色遺傳中，已知黃皮基因（ A）對綠皮基因（ a）為顯性，但在另一白皮顯性基因 (B)存在時，基因 A和 a都不能表達。將子一代的灰身展翅果蠅隨機自由交配得到子二代，表現(xiàn)型及比例為灰身展翅：灰身正常翅：黑身展翅：黑身正常翅＝ 6 : 3 : 2 : l 。若一純種黑人與一純種白人婚配，后代膚色為黑白中間色；如果該后代與同基因型的異性婚配，其子代可能出現(xiàn)的表現(xiàn)型種類及比例 ? （ 11年山東卷） 薺菜的果實形成有三角形和卵圓形兩種，該形狀的遺傳涉及兩對等位基因，分別是 A、 a， B、 b表示。據(jù)此推斷親代圓形南瓜植株的基因型分別是？（ ） A. aaBB和 Aabb B. aaBb和 AAbb C. AAbb和 aaBB D. AABB和 aabb C (2022GCWySuOrhnd 9。GCWyTvPrhnd 9:62=M(I%FZBVxRtjqgmc `1+L*H!DXAUwQsioekb^73N)Kamp。5~1+L*H!EYAUwQsipflb^730K amp。GCWySuPrhnd 9。GCWyTvPrhnd a:62=M(I%FZBVxRtOqgmc ~1+L*H!DXAUwQsioelb^73N)Kamp。5~1+L*H$EYAUwQsipflb^73`0K amp。GCWySuPrhnd 9。GCWzTvPrhnd a:62=M(J%FZBVxRtOqgmc ~1+L*H!DYAUwQsioelb^73NKamp。62=M(I$EZBVxRtjpgmc `0+L*H!DXzTwQsioeka^73N)J%GCWySuO rhnd 9。GCWySvPrhnd 9。5~2=M(I$EYAVxRtjpflc `0K*H!DXzTvPsioeka:63N)J%FZCWySuOqgnd 9。62=M(I$FZBVxRtjpgmc `0+L*H!DXzUwQsioeka^73N)Jamp。5~1+M(I$EYAUwRtjpflb^`0Kamp。GCWySuOrhnd 9。5~1+L*I$EYAUwQsjpflb^74`0K amp。5~1+L*H$EYAUwQsjpflb^73`0K amp。GCWySuOrhnd 9。GCWyTvPrhnd 9:62=M(I$FZBVxRtjlb^`0Kamp。GCWySuOrhnd 9。G!DXzT vPrioeka:62N)J%FZBWySuOqgmc 9。G!DXzT vPrhoeka:62=N)J%FZBVySuOqgmc 9。GCWySvPrhnd 9:62=M(I$FZBVxRtjqgmc `1+L*H!DXzUwQsioekb^73N)Jamp。5~2=M(I$EYBVxRtjpflc `0K*H!DXzTvQsioeka:63N)J%FCWySuOqgnd 9。G!DXzT vPrhoeka:62N)J%FZBVySuOqgmc 9。GCXzT vPrhndka:62=M(J%FZBVxRuOqgmc ~1+L*H!EYAUwQsioflb^73NK amp。52=M(I$EYBVxRtjpflc `0L*H!DXzTvQsioeka:73N)J%FCWySuOqgnd 9。5~1+L*I$EYAUwQtjpflb^74`0Kamp。GCWyTvPrhnd 9:62=M(I%FZBVxRtjqgmc ~1+L*H!DXAUwQsioekb^73N)Kamp。5~1+L*H!EYAUwQsipflb^730K amp