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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

Explain what happens if even one amino acid is substituted for another in a polypeptide chain. Provide a specific example.

Lactose is a disaccharide formed by the formation of a

________ bond between glucose and ________.

a. glycosidic; lactose

b. glycosidic; galactose

c. hydrogen; sucrose

d. hydrogen; fructose

What kind of sugars are these, aldose or ketose?

Mad cow disease is an infectious disease where one

misfolded protein causes all other copies of the protein

to begin misfolding. This is an example of a disease

impacting ____ structure.

a. primary

b. secondary

c. tertiary

d. quaternary

What kind of sugars are these, aldose or ketose?
See all solutions

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