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现在高考试题生物学科占一定的分值,大家对生物的关注程度在提高,生物个体基因型的判断,还有基因的位置的判断,以及细胞质细胞核遗传的判断。这里将对这个判断作出总结。一、纯合子、杂合子的判断纯合子、杂合子鉴定的方法通常有两种,即自交法与测交法。一般来说,动物常用测交法,而植物最简便的方法是采用自交法。对于高等动物而言,要保证有足够多的子代,一雄性个体应与多个雌性个体交配。
Now college entrance examination biology subjects accounted for a certain score, we are raising concerns about the biology, genotypes of individual biological judgments, as well as the location of genes to determine, as well as the judgment of the cytoplasmic nuclear hereditary. This judgment will be summarized here. First, the homozygotes, heterozygotes judge Homozygotes, heterozygotes are usually identified in two ways, namely self-law and test method. In general, animal commonly used method of test, and plant the most convenient method is to use self-law. For higher animals, to ensure that there are enough offspring, a male individual should mate with more than one female.