A:Don't laugh at anybody though they make a mistake.
B:Don't agree with anybody because they are wrong.
C:Don't talk about anybody when they are not here.
①豌豆是自花传粉,实验过程免去了人工授粉的麻烦
②“豌豆在自然状态下一般是纯种”属于孟德尔假说的内容
③解释性状分离现象的“演绎”过程是:若F1产生配子时,成对的遗传因子分离,则测交后代出现两种表现型,且比例接近1:1
④解释实验现象时提出的“假说”之一:F1产生配子时,成对的遗传因子分离
根据解释从文中找出相应的词语。
①口头指派或命令。____
②观察人的衣着、外貌。____
③天气好,阳光很充足,景物鲜明可爱。____