The __________ is a genetic makeup of an individual for a specific trait.

• A. Genotype.
• B. Phenotype.

Answer: (A)

Verified step by step guidance

1. Understand the difference between 'genotype' and 'phenotype'. The genotype refers to the genetic makeup of an individual, which includes the specific alleles inherited from both parents for a particular trait.
2. Recognize that the phenotype is the observable expression or characteristics of that trait, which can be influenced by both the genotype and environmental factors.
3. Identify that the question is asking for the genetic makeup, which directly points to the term 'genotype'.
4. Recall that the genotype is often represented by letters (e.g., AA, Aa, aa) that denote the alleles present for a specific gene.
5. Conclude that the correct term to fill in the blank, based on the definition provided, is 'genotype'.