皮皮学，免费搜题
登录
搜题
【判断题】
一般环境下安全工频电流30mA，安全工频电压50V，特殊环境下另有规定。A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】During fibrillogenesis of type I collagen, the triple helix of the procollagen molecule is formed at which of the following locations?
A.
Extracellular space
B.
Golgi apparatus
C.
Nucleus
D.
Rough endoplasmic reticulum
E.
Secretory vesicles
【单选题】概率密度曲线和直方图曲线的主要区别是 ？
A.
概率密度曲线的积分为1，直方图曲线的积分部位1；
B.
直方图曲线上的值大于概率密度曲线；
C.
直方图曲线的形状与概率密度曲线的形状不相同；
D.
直方图曲线的计算方法与概率密度曲线的计算方法不相同；
【单选题】In the a helix, the hydrogen bonds:
A.
are roughly parallel to the axis of the helix.
B.
are roughly perpendicular to the axis of the helix.
C.
occur mainly between electronegative atoms of the R groups.
D.
occur only between some of the amino acids of the helix.
E.
occur only near the amino and carboxyl termini of the helix.
【简答题】螺旋-转角-螺旋基序(helix-turn-helix motif)
【单选题】Collagen provides great tensile strength to connective tissue by its structure as a triple helix. Which amino acid is critical in allowing triple-helix formation?
A.
Proline
B.
Hydroxyproline
C.
Lysine
D.
Glycine
E.
Elastin
【简答题】α螺旋-转角-α螺旋基序模体(helix-turn-helix motif)
【简答题】α-螺旋(α-helix)
【简答题】Triple Helix DNA; quadruplex DNA;
【简答题】螺旋-环-螺旋(helix-loop-helix)
相关题目：
参考解析：
知识点：
题目纠错 0
发布
