问题
问答题
在玉米中,控制某种除草剂抗性(简称抗性,T)与除草剂敏感(简称非抗,t)非糯性(G)与糯性(g)的基因分别位于两对同源染色体上。有人以纯合的非抗非糯性玉米(甲)为材料,经过EMS诱变处理获得抗性非糯性个体(乙);甲的花粉经EMS诱变处理并培养等,获得可育的非抗糯性个体(丙)。 请回答:
获得丙的过程中,运用了诱变育种和__________育种技术。
答案
参考答案:单倍体
在玉米中,控制某种除草剂抗性(简称抗性,T)与除草剂敏感(简称非抗,t)非糯性(G)与糯性(g)的基因分别位于两对同源染色体上。有人以纯合的非抗非糯性玉米(甲)为材料,经过EMS诱变处理获得抗性非糯性个体(乙);甲的花粉经EMS诱变处理并培养等,获得可育的非抗糯性个体(丙)。 请回答:
获得丙的过程中,运用了诱变育种和__________育种技术。
参考答案:单倍体
HE cleans your house. He repairs your broken toys. He helps you with your homework. Even if(即使) you make a lot of trouble at school, he’ll never stop loving you. WHO? .It’s your father, and you could never thank him enough for everything he has done for you. So don’t forget to do something nice for him on Father’s Day. It’s always on the third Sunday in June. This year it’s the seventeenth of June. How can we celebrate it and make it a special Father’s Day? Here are Millie’s and Ricky’s ideas:
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