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DNA Structure and Function

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Questions and Answers

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?

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?

The percentage of A always equals the percentage of T, leading to polarity in DNA

The terminal nucleotide at one end has a free 5ʹ group, and the other end has a 3ʹ 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?

<p>From the nucleus to the ribosomes in the cytoplasm</p> Signup and view all the answers

What is the function of ribosomal RNA (rRNA)?

<p>Makes up the ribosomes where polypeptides are synthesized</p> Signup and view all the answers

DNA Structure and Function

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Podcast

Questions and Answers

What is the difference in sugar composition between RNA and DNA?

What is the structure of DNA in terms of helix and strands?

Why does a DNA chain have polarity?

Where does messenger RNA (mRNA) function within the cell?

What is the function of ribosomal RNA (rRNA)?

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