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
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
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
- Our football team ______ twelve members. A: is made of B: is made up for C: is made from D: is made up of
- The research group is()6 teachers and 20 students. A: made of B: made up C: made from D: made up of
- What is the skeleton made up ofIt is made up of______.