论文部分内容阅读
2013高考新课标理综试卷中涉及到这样一道遗传题(31题),原题为:一对相对性状可受多对等位基因控制,如某植物花的紫色(显性)和白色(隐性)这对相对性状就受多对等位基因控制。科学家已从该种植物的一个紫花品系中选育出了5个基因型不同的白花品系,且这5个白花品系与该紫花品系都只有一对等位基因存在差异。某同学在大量种植该紫花品系
2013 college entrance examination new science test papers related to such a genetic question (31 questions), the original title is: a pair of relative traits can be controlled by multiple pairs of alleles, such as a plant flower purple (dominant) and white ( Recessive) This pair of relative traits is controlled by multiple pairs of alleles. Scientists have bred five white flowers of a different genotype from one of the plant’s purple lines, and there is only one pair of alleles for the five white lines and the purple line. Some students planted a large number of the purple flowers