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答:果穗与种子(指的胚和胚乳)是不同的世代的组织,是不同基因型的反映.高中生物课本“实验二”上提的“F_1的果穗”,应改为F_1种子或亲本植株果穗上的玉米粒。“F_2果穗粒色”应改为F_2玉米粒色或F_1植株果穗上的玉米粒色等. 其理由是:玉米果穗包括穗柄、苞叶、穗轴和雌性小花等部分,由主茎腋芽延仲而长成,与主茎植株(这里指亲代母本植株)同一世代,属于母本体细胞组织,它的性状发育由母本的基因型所决定的.所以果穗不
A: Ear and seed (ie, embryo and endosperm) are different generations of tissue, is a reflection of different genotypes. “High school biology textbook” Experiment 2 “mention” F_1 ear “should be changed to F_1 seeds or parent plant Corn grains on the ear. ”F_2 ear grain color" should be changed to F_2 corn grain color or F_1 plant ear corn grain color on the grounds: maize ear, including ear handle, husk, cob and female flowers and other parts of the main stem axillary bud Zhong and grow into, and the main stem plant (here refers to the parental parent plant) the same generation, belongs to the mother cell body tissue, its development of traits is determined by the genotype of the female parent.