Following are some statements about the structural features of nucleic acids. Id
ID: 829776 • Letter: F
Question
Following are some statements about the structural features of nucleic acids. Identify whether the statement refers to DNA, to RNA, to both, or to neither by dragging the statement into the appropriate bin.
- In base composition, %A = %G
- Sometimes contains the nucleoside pseudouridine
- Secondary structure is primarily a double helix
- Bases are attached to sugars in a Beta-N-glycosidic linkage
- Can exist in a variety of, and often unique, secondary structures
- Contains the pyrimidine cytosine
- Contains the pyrimidine thymine
- Sugars are connected with a 3'-5' phosphodiether link
- Contains the sugar 3'-deoxyribose
- Contains the sugar ribose
- In base composition, %G = %C
Explanation / Answer
DNA :
(1) Contains the pyrimidine thymine
(2) Secondary structure is primarily a double helix
RNA
(1) Contains the sugar ribose
(2) Sometimes contains the nucleoside pseudouridine
TO BOTH DNA AND RNA
(1) Bases are attached to sugars in a Beta-N-glycosidic linkage
(2) Contains the pyrimidine cytosine
(3) In base composition, %G = %C
(4) Can exist in a variety of, and often unique, secondary structures
NEITHER DNA NOR RNA
(1) Contains the sugar 3'-deoxyribose
(2) In base composition, %A = %G
(3) Sugars are connected with a 3'-5' phosphodiether link