The First Step in Developing the Conceptual Model Using ER

question 26

Multiple Choice

The first step in developing the conceptual model using ER diagrams is to _____.

• A) normalize the entities
• B) complete the initial ER diagram
• C) identify, analyze, and refine the business rules
• D) define the attributes, primary keys, and foreign keys for each of the entities

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Definitions:

DNA Mutation

A change in the nucleotide sequence of the DNA molecule, which can lead to variations in physical traits and health conditions.

Nucleotide Sequence

The precise order of nucleotides within a DNA or RNA molecule, which constitutes the genetic information of an organism.

Purines

Nitrogen-containing organic compounds that form part of the structure of nucleic acids, including adenine and guanine.

Guanine

One of the four main nucleobases found in the nucleic acids DNA and RNA, which pairs with cytosine.