For a given species, sex-influenced traits are expressed in only one sex and have zero penetrance in the other sex.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- 中国大学MOOC: For a given species, sex-influenced traits are expressed in only one sex and have zero penetrance in the other sex.
- 查询性别为男的信息，条件怎么写 A: where sex !=’男' B: where sex not in 男 C: where sex ='男' D: where sex between 男
- d={'name':'alice','age':19,'sex':'F'},不能删除’sex’项目的操作的是（） A: del d['sex'] B: d.pop() C: d.pop('sex') D: d.clear()
- 查询天心区的男学生的信息，正确的命令是？ A: db.students.find({"address":"天心区"},{"sex":"男"}) B: db.students.find({"address":"天心区","sex":"男"}) C: db.students.find({$and:{"address":"天心区","sex":"男"}}) D: db.students.find({$and:[{"address":"天心区"},{"sex":"男"}]})
- Which of the following is correct sex concept？ A: Older people do not need sex B: Adolescent sexual life does not require contraception C: Condom is a safe and effective method of contraception D: Women can have sex when they start menstruating