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Multiple Choice
Which of the following attributes of DNA is most crucial to its accurate duplication?
A
Its helical nature and hydrogen bonding
B
Its phosphodiester linkages and complementary strands
C
Its deoxyribose sugar and phosphate groups
D
Its specific sequence of bases
E
Its specific base pairing through hydrogen bonds
Verified step by step guidance
1
Understand the structure of DNA: DNA is composed of two strands forming a double helix, with each strand consisting of a sugar-phosphate backbone and nitrogenous bases.
Recognize the role of base pairing: The nitrogenous bases on each strand pair specifically through hydrogen bonds, with adenine (A) pairing with thymine (T) and cytosine (C) pairing with guanine (G).
Identify the importance of complementary base pairing: This specific pairing ensures that each strand can serve as a template for the creation of a new complementary strand during DNA replication.
Consider the role of hydrogen bonds: Hydrogen bonds between the bases are crucial for the stability of the DNA structure and for the accurate pairing during replication.
Conclude that specific base pairing is essential: The specificity of base pairing through hydrogen bonds is the most crucial attribute for accurate DNA duplication, as it ensures that the genetic information is precisely copied.