题目内容

Which of the following statements about the double-helix structure of B-DNA is false ( )

A. consists of two antiparallel chains
B. The bases are arranged on the inside of the helix, phosphate and deoxyribose lies outside of the helix
C. Each turn consists of 10 base pairs
D. The base pairing between the two chains is very strict, that is, A-T, G - C pairs
E. the double helical surface only has major groove

查看答案

搜索结果不匹配？点我反馈

更多问题

In which solution, does serum albumin,pI 4.7,have positive charge( )

A. pH7.0
B. pH8.0
C. pH6.0
D. pH4.0
E. pH5.0

The main chemical bond which maintain secondary structure of protein is ( )

A. salt bond
B. hydrophobic bond
C. hydrogen bond
D. van der waals force
E. peptide bond

which force make DNA double helix stable? ( )

A. hydrogen bond
B. base stacking force
C. peptide bond
D. disulfide bond
E. all above is wrong

coupling sites for generation of ATP in respiratory chain include ( )

A. NADH→CoQ
B. cyt C→cytaa3
C. cytaa3→O2
D. CoQ→ cyt C
E. FAD→CoQ