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射手座1209新蟲 (初入文壇)
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[求助]
回交的問題
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Genetic analysis of a backcrossed F2 progeny indicated that the segregation ratio of mutant:WT was 83:28 (3:1, P=0.96, χ2 test), in which all of the mutant phenotypes co-segregated with a T-DNA insertion event. These results suggested that smo3- D is a single-gene dominant mutant that may be caused by a T-DNA insertion. 已經(jīng)篩選得到一個顯性突變體,這段遺傳分析是什么意思? 回交F2代是指F2代與什么基因型回交? 此處的F2代是怎么來的?親本是什么,F(xiàn)1代是什么? 謝謝 |
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