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Multiple Choice
What type of covalent bond connects the nucleotides in the backbone of the strand?
A
Peptide bond
B
Phosphodiester bond
C
Glycosidic bond
D
Hydrogen bond
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Verified step by step guidance
1
Understand the structure of DNA: DNA is composed of nucleotides, each consisting of a sugar, a phosphate group, and a nitrogenous base.
Identify the components involved in forming the backbone of the DNA strand: The backbone is formed by the sugar and phosphate groups of the nucleotides.
Recognize the type of bond that connects these components: The sugar of one nucleotide is connected to the phosphate group of the next nucleotide.
Learn about the phosphodiester bond: This bond is a covalent bond formed between the 3' hydroxyl group of the sugar of one nucleotide and the 5' phosphate group of the next nucleotide.
Differentiate from other types of bonds: Peptide bonds connect amino acids in proteins, glycosidic bonds connect sugars in carbohydrates, and hydrogen bonds are non-covalent interactions between bases in DNA.