Scelta multipla
Which of the following could be a nucleotide of DNA?
115
views
7. DNA and Chromosome Structure
DNA Structure
Scelta multipla
In DNA structure, which two molecules form the sugar-phosphate backbone of DNA?
A
Phosphate groups and hydrogen bonds
B
Ribose sugar and phosphate groups
C
Deoxyribose sugar and nitrogenous bases
D
Deoxyribose sugar and phosphate groups
Guida verificata passo dopo passo1
Understand the structure of DNA, which consists of a long chain of nucleotides.
Each nucleotide is composed of three parts: a phosphate group, a sugar molecule, and a nitrogenous base.
The sugar in DNA is deoxyribose, which differs from ribose by lacking one oxygen atom.
The sugar-phosphate backbone is formed by covalent bonds between the phosphate group of one nucleotide and the deoxyribose sugar of the next nucleotide.
Hydrogen bonds connect the nitrogenous bases between the two DNA strands, but they do not form the backbone.
Video correlati
Pratica correlata
