A world chess champion has curly hair, attached earlobes and freckles. Which one of the following traits is not likely to be passed on to his/her offsprings ?

In biology, traits are classified into two categories: inherited traits and acquired traits.

• Inherited traits, such as curly hair, attached earlobes, and freckles, are determined by an individual's genetic code (DNA). These are passed from parents to offspring through reproductive cells.
• Acquired traits, such as chess skills, musical ability, or physical scars, are developed during an individual's lifetime through practice, learning, and environmental interaction.

According to the principles of heredity, acquired traits do not alter the DNA of the germ cells (sperm or eggs). Therefore, they cannot be biologically transmitted to the next generation. While the offspring of a chess champion may inherit a high cognitive potential, the specific chess skills must be learned and practiced independently and are not genetically inherited.