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Nucleic Acid Structure

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Questions and Answers

What is the primary component of the sugar found in DNA?

Deoxyribose (correct)
Glucose
Fructose
Ribose

Which of the following nitrogenous bases is not found in DNA?

Guanine
Uracil (correct)
Thymine
Adenine

What is the phosphate group's role in nucleotides?

It forms the backbone of the nucleic acid (correct)
It provides the nitrogenous base
It helps in the formation of hydrogen bonds
It provides the sugar molecule

What is the sugar molecule found in RNA?

Ribose (D) Signup and view all the answers

What are the building blocks of nucleic acids?

Nucleotides (D) Signup and view all the answers

Which of the following statements about the sugar component of nucleotides is true?

The sugar molecule provides a hydrophobic environment for the nitrogenous base (A) Signup and view all the answers

What is the primary function of the phosphate group in nucleotides?

To form a strong covalent bond with the sugar molecule (D) Signup and view all the answers

Which of the following nitrogenous bases is found in both DNA and RNA?

Adenine (B) Signup and view all the answers

What is the result of the sugar molecule in DNA being deoxyribose?

A less stable nucleotide structure (C) Signup and view all the answers

Which of the following is a characteristic of the nitrogenous base uracil?

It is a pyrimidine base (A) Signup and view all the answers

Study Notes

Nucleic Acids Building Blocks

Nucleotides are the building blocks of nucleic acids.
A nucleotide is composed of three components:
- A sugar molecule (deoxyribose in DNA and ribose in RNA)
- A phosphate group
- A nitrogenous base

Nitrogenous Bases

There are five nitrogenous bases in nucleic acids:
- Adenine (A)
- Thymine (T) or Uracil (U)
- Cytosine (C)
- Guanine (G)

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Description

Discover the fundamental components of DNA and RNA, including the sugar, phosphate group, and nitrogenous bases that make up nucleotides. Learn about the differences between DNA and RNA and their building blocks. Test your understanding of nucleic acid structure!