The backbone of a DNA molecule is
_________.()
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
sugar groups
_________.()
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
sugar groups
举一反三
- 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<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
- A tooth ( <br/>) many parts. A: is made of B: is made<br/>up of C: is made from
- The information encoded in DNA resides in() A: phosphates in<br/>the backbone B: sugars in the<br/>backbone C: the DNA base<br/>sequence D: the sugars and<br/>phosphate groups together
- A tooth ( ) many parts. A: is made of B: is<br/>made up of C: is made from