Asked by Gekayla Alexander on Apr 23, 2024
Verified
In the Watson-Crick model of DNA, the "sides" of the ladder are composed of
A) sugars.
B) bases.
C) hydrogen bonds.
D) sugar-phosphate molecules.
E) phosphate groups.
Watson-Crick Model
A structural model of DNA proposed by James Watson and Francis Crick, illustrating DNA as a double helix composed of two antiparallel strands.
Sugar-Phosphate
Refers to the backbone of DNA and RNA, composed of alternating sugar and phosphate groups that hold together the nucleotide bases.
Ladder
A piece of equipment consisting of a series of bars or steps between two upright lengths of wood, metal, or rope, used for climbing up or down.
- Grasp the configuration and elemental composition of DNA and RNA.
Verified Answer
MH
Malia Halaifonua4 days ago
Final Answer :
D
Explanation :
The "sides" of the DNA ladder are composed of alternating sugar and phosphate molecules, which are connected by phosphodiester bonds. The nitrogenous bases are attached to the sugar molecules and project inward, forming the characteristic double helix structure.
Learning Objectives
- Grasp the configuration and elemental composition of DNA and RNA.