A: phosphates in
the backbone
B: sugars in the
backbone
C: the DNA base
sequence
D: the sugars and
phosphate groups together
举一反三
- The<br/>backbone of a DNA molecule is () A: made<br/>up of sugars B: made<br/>up of nitrogenous bases C: made<br/>up of phosphate D: made<br/>up of alternating phosphate and sugar groups E: made<br/>up of alternating sugars and nitrogenous base
- The backbone of a DNA molecule is<br/>_________.() A: made up of sugars alone B: made up of nitrogenous bases alone C: made up of phosphate groups alone D: made up of alternating phosphate and<br/>sugar groups
- The backbone of a DNA molecule is: ( ) A: made up of sugars B: made up of nitrogenous bases C: made up of phosphate groups D: made up of alternating phosphate and sugar groups E: made up of alternating sugars and nitrogenous base
- The composition of<br/>backbone of polynucleotides includes () A: base and pentose<br/>sugar B: base and<br/>phosphate C: base and base D: pentose sugar and<br/>phosphate E: pentose sugar and<br/>pentose sugar
- DNA<br/>polymorphisms(多态性)描述正确的() A: DNA<br/>Length polymorphisms B: DNA<br/>Sequence polymorphisms C: DNA长度多态性 D: DNA序列多态性
内容
- 0
The<br/>role of RNA primer during DNA replication is:() A: to<br/>guide DNA polymerase to bind with DNA template B: to<br/>provide 5’ phosphate end C: to<br/>provide attachment sites for four kinds of NTP D: inducing<br/>synthesis of RNA E: to<br/>provide 3’-OH end to initiate synthesis of new DNA
- 1
Which of the<br/>following statements about non-coding DNA is wrong? () A: DNA sequence of non-coding protein. B: DNA sequence of non-coding RNA and protein. C: DNA sequence participating in the regulation of gene expression, but<br/>not coding protein. D: Relate to genome protection.
- 2
The<br/>mountain system the Pennines is often called the backbone of (<br/>). A: England B: Scotland C: Great Britain D: Ireland
- 3
病毒含有的核酸形式通常是:____。[br][/br]· A、DNA[br][/br]· B、RNA[br][/br]· C、DNA和RNA[br][/br]· D、DNA或RNA
- 4
The<br/>enzyme closely related to the synthesis of RNA primer is:() A: DNA<br/>pol α; B: DNA<br/>pol γ; C: DNA<br/>pol δ; D: DNA<br/>pol I; E: DNA<br/>pol III