Scelta multipla
In the context of DNA structure, DNA is a polymer of which type of monomer?
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7. DNA and Chromosome Structure
DNA Structure
Scelta multipla
In the DNA double helix, what molecules form the sides of the “ladder” (the backbone)?
A
Amino acids linked by peptide bonds
B
Ribose sugars and phosphate groups
C
Nitrogenous bases paired by hydrogen bonds
D
Alternating deoxyribose sugars and phosphate groups
Guida verificata passo dopo passo1
Recall the structure of the DNA double helix, which resembles a twisted ladder.
Identify that the 'sides' or backbone of this ladder are composed of repeating units.
Understand that these repeating units are alternating sugar and phosphate molecules.
Recognize that in DNA, the sugar is deoxyribose, a five-carbon sugar molecule.
Conclude that the backbone consists of alternating deoxyribose sugars and phosphate groups linked by phosphodiester bonds.
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