论文部分内容阅读
在人教版高中生物必修2“遗传与进化”模块中设置了“建立减数分裂中染色体变化的模型”的构建活动。该活动用橡皮泥制作成染色体,模拟减数分裂过程中染色体的变化。在实际教学中,笔者利用扑克牌代替橡皮泥模拟减数分裂过程中染色体的变化,取得了很好的效果。一、材料用具普通扑克牌两副、剪刀一把、铅笔一支、A4纸若干、回形针一盒、订书机一个、订书钉若干、直尺一把。二、染色(单)体的制作任意取出两副扑克牌中花色、数字完全相同的
In the PEP biology compulsory 2 “genetic and evolution ” module set “build model of chromosome changes in meiosis ” building activity. The activity was made into a chromosome with plasticine to simulate changes in chromosomes during meiosis. In the actual teaching, I use poker instead of plasticine to simulate the chromosome during meiosis and achieved good results. First, materials and equipment Common playing cards two, a pair of scissors, a pencil, a number of A4 paper, a paper clip box, a stapler, a number of staples, a ruler. Second, the production of dyeing (single) arbitrarily take out two cards in the suit, the same number