2022英语周报初二第12期答案

6.D本题主要考查基因与染色体的关系以及遗传定律的相关知识。由图可知,该种动物体色表现为不完全显性A项错误;该种动物体色基因遵循孟德尔定律,B错误;雄性伴性遗传中有一种伴XY遗传(基因在XY同源段),可以不是半合子,C错误;因为雌性粉色个体中产生A2配子的概率为1/2,它与雄性白色任何配子组合,后代个体均为白色,D正确

第二节One passible versionNeAimed at promoting our interest in reading and impro-ving our writing skills, an English reading and writing con-test is to be held in our school next monthThe contest consists of two parts, task-based writingand theme writing, both of which are good ways to show ourEnglish ability. All the students in our school are welcometo take part in the contest. Three winners will be chosen fora 15-day summer camp in London. If you re interestedplease come to the Students Union and sign up beforeSeptemberThere is no doubt that participants will benefit a lotfrom the contest. Don'I miss the valuable chance lThe Student's Union第三节One passible version

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