Diagrams depicting family relationships and phenotypes for a genetic disorder are:

• A. Pedigree charts.
• B. Karyotypes.
• C. Punnett squares.
• D. Bell-shaped curves.

Answer: (A)

Verified step by step guidance

1. Understand the purpose of each tool: Pedigree charts are used to track inheritance patterns of traits across generations in a family. Karyotypes display the number and appearance of chromosomes, Punnett squares predict the probability of offspring inheriting particular traits, and bell-shaped curves represent the distribution of traits in a population.
2. Identify the key feature of the problem: The problem asks for a tool that depicts family relationships and phenotypes for a genetic disorder.
3. Match the key feature with the correct tool: Pedigree charts are specifically designed to show family relationships and the inheritance of phenotypes, making them suitable for tracking genetic disorders.
4. Consider the other options: Karyotypes are not used for depicting family relationships, Punnett squares are used for predicting genetic outcomes rather than depicting existing relationships, and bell-shaped curves are statistical representations, not family diagrams.
5. Conclude that the correct answer is 'Pedigree charts' as they best fit the description of depicting family relationships and phenotypes for a genetic disorder.