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1疑问夏祥斌[湖北省武汉市钢都中学(430081)]人教版高中《生物·必修2·遗传与进化》P.87:蜜蜂的蜂王和工蜂的体细胞中有32条染色体,而雄蜂的体细胞中只有16条染色体。像蜜蜂的雄蜂这样,体细胞中含有本物种配子染色体数目的个体,叫做单倍体。一般理解为“蜜蜂没有性染色体和常染色体之分,蜂王和工蜂由受精卵发育而来,属于二倍体,性别为雌性;由卵细胞直接发育而来的属于单倍体,性别为雄性”。蜜蜂的性别究竟如何决定?属于XY型,
1 Question Xia Xiangbin [Steel Capital High School, Wuhan City, Hubei Province (430081]] PEP High School Biology and Compulsory 2 Genetics and Evolution P.87: There are 32 chromosomes in somatic cells of bee queen bee and worker bee, There are only 16 chromosomes in somatic cells. Like drone bees, somatic cells contain the number of individuals in the gametophyte chromosomes, called haploid. Generally understood as “Bee has no sex chromosomes and autosomes, queen bee and worker bees developed from the fertilized egg, belongs to the diploid, the female gender; derived directly from the egg cells belong to the haploid sex male- ”. How to determine the sex of bees? Belong to XY type,