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Questions and Answers
What is the difference in sugar composition between RNA and DNA?
What is the difference in sugar composition between RNA and DNA?
- RNA contains deoxyribose sugar, while DNA contains ribose sugar
- RNA contains ribose sugar, while DNA contains deoxyribose sugar (correct)
- RNA contains thymine, while DNA contains uracil
- RNA contains adenine, guanine, cytosine, and uracil, while DNA contains adenine, guanine, cytosine, and thymine
What is the structure of DNA in terms of helix and strands?
What is the structure of DNA in terms of helix and strands?
- DNA is single helix with two strands
- DNA is double helix with two strands (correct)
- DNA is double helix with one strand
- DNA is single helix with one strand
Why does a DNA chain have polarity?
Why does a DNA chain have polarity?
- The percentage of A always equals the percentage of T, leading to polarity in DNA
- The terminal nucleotide at one end has a free 5Í´ group, and the other end has a 3Í´ group, resulting in polarity (correct)
- DNA's helical structure causes it to have polarity
- DNA's interaction with histone proteins creates polarity
Where does messenger RNA (mRNA) function within the cell?
Where does messenger RNA (mRNA) function within the cell?
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What is the function of ribosomal RNA (rRNA)?
What is the function of ribosomal RNA (rRNA)?
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