All nucleic acids must contain which of the following?Group of answer choicesribosedeoxyribosephosphate groupamino acids

To answer the question regarding the components required for all nucleic acids, we need to identify the essential parts of the structure of nucleic acids such as DNA and RNA.

Breakdown of the Problem

1. Identify Components of Nucleic Acids: We need to determine which of the provided choices are common to all nucleic acids.
2. Evaluate Each Option: Analyze each option to see if it is a fundamental part of nucleic acids.

Relevant Concepts

• Nucleic Acids: Nucleic acids are biopolymers essential for all forms of life. The two primary types are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
• Components of Nucleic Acids:
  • Nucleotides, which are the building blocks of nucleic acids, consist of:
    1. A sugar molecule (ribose in RNA and deoxyribose in DNA).
    2. A phosphate group.
    3. A nitrogenous base (not listed in the options).

Analysis and Detail

1. Ribose: This sugar is found only in RNA, not in DNA. Thus, it is not present in all nucleic acids.
2. Deoxyribose: This sugar is found only in DNA, so it is also not present in all nucleic acids.
3. Phosphate Group: This group is found in both DNA and RNA, and is crucial in forming the backbone of the nucleic acid structure.
4. Amino Acids: These are not components of nucleic acids; they are building blocks of proteins, not nucleic acids.

Verify and Summarize

From the analysis, the only component that is a part of both DNA and RNA, thus present in all nucleic acids, is the phosphate group.

Final Answer

The correct choice is phosphate group.