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在高中生物遗传试题的训练过程中,经常会遇到考查控制某一性状的遗传方式属于细胞核遗传还是细胞质遗传或某基因位于常染色体上还是位于X染色体上的试题。对学生来说这类试题是一个难点,但是关于这类试题考查的内容在教材中没有具体的文字描述,只是在孟德尔豌豆杂交实验一中提到用纯种的高茎豌豆和纯种的矮茎豌豆作亲本进行杂交,无论用髙茎作母本(正交),还是作父本(反交),杂交后的第一代(简称子一代,用F1表示)总是高茎,用子一代自交,结果在子二代植株中,
In the training course of biological genetic test in high school, it is often encountered to examine whether the genetic mode of controlling a trait belongs to the nuclear or cytoplasmic inheritance or whether a gene is located on an autosomal chromosome or on the X chromosome. For students, such questions is a difficult task, but the content of these exam questions in the textbook does not have a specific text description, but in the Mendelian peas hybridization experiment mentioned in the use of purebred tall pea and purebred Short-stalked peas were used as parents for hybridization. The first generation after hybridization (referred to as the F1 generation) was always tall with either stem (orthogonality) or parent (anthesis) Self-generation of sub-generation, the results in the second generation of plants,