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Chapter 3: Q. 34 (page 94)

What are the structural differences between RNA and DNA?

Short Answer

Expert verified

The RNA and DNA differ in their number of helical strands, nitrogenous base composition, sugar moiety, and molecular mass.

Step by step solution

01

Introduction

DNA and RNA are the nucleic acids of the cell. They are made up of sugar, phosphate, and nitrogenous bases.

02

Explanation

DNA contains the sugar deoxyribose while RNA contains a ribose sugar, and hence they have their name as DeoxyriboNucleic Acid and RiboNucleic Acid respectively. Again, the nitrogenous bases present in DNA are Adenine, thymine, cytosine, and Guanine, while RNA instead of Thymine contains uracil base. They both also differ in the number of helical strands. The DNA is double-stranded while RNA is a single-stranded molecule. Also, the molecular mass of DNA is larger than RNA.

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Most popular questions from this chapter

Aquaporins are proteins embedded in the plasma membrane that allow water molecules to move between the extracellular matrix and the intracellular space. Based on its function and location, describe the key features of the protein鈥檚 shape and the chemical characteristics of its amino acids.

The 伪-helix and the 尾-pleated sheet are part of which

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a. primary

b. secondary

c. tertiary

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What role do electrons play in dehydration synthesis and hydrolysis?

Describe the differences in the four protein structures.
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