Question detail
Explain the role of the phosphate group in DNA nucleotides.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Amino acids, proteins and DNA (A-level only)
Question
Explain the role of the phosphate group in DNA nucleotides.
Answer
The phosphate group in DNA nucleotides links the sugar of one nucleotide to the sugar of another, forming the sugar-phosphate backbone of the DNA strand.
Explanation
This answer is strong as it clearly describes the function of the phosphate group in the context of DNA structure. The question assesses the understanding of how nucleotides connect to form DNA, which is crucial for grasping the overall structure of genetic material.
Common mistake
Confusing DNA Nucleotide Components
Students often confuse the components of DNA nucleotides, such as mixing up the sugar and phosphate groups.
Remember that a DNA nucleotide consists of a deoxyribose sugar, a phosphate group, and a nitrogenous base. Clearly label each component when drawing or describing nucleotides.
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