请教２道语法 感谢ing

zhengzheng1026UID: 168914

新东方黄皮书 练习28
36 题　Almost (every )the hereditary (material) of an (individual )organism resides (in the )chromosomes.
答案是A 请问怎么改呢？ every of the ……..??

２８题　When (canned) (using) proper methods,food suffers (no) loss in vitamins or (another) nutritive elements.
答案是D很明显　但是逗号前的不句子结构不明白　　感觉是　when canned (food) (is) using (in )proper methods不知道是不是这样的，这句话的谓语是什么呢？请大家指点～～～～

avexUID: 159089

36 + of
28 When food is canned using proper methods