Question

1. explain the difference between an organism’s phenotype and genotype.

Explanation:

• Genotype: It refers to the genetic makeup of an organism, which is the set of genes (alleles) that an individual inherits from its parents. These genes are made up of DNA sequences and determine the potential traits an organism can express. For example, the alleles for flower color in a plant (e.g., \( AA \), \( Aa \), or \( aa \) where \( A \) and \( a \) are different alleles related to color) represent the genotype.
• Phenotype: This is the observable physical or biochemical characteristic of an organism, which is the result of the interaction between the genotype and the environment. It includes traits like appearance (e.g., flower color, height of a plant), behavior, or physiological properties. Using the flower color example, if the genotype is \( AA \) or \( Aa \) and the environment is suitable for pigment production, the phenotype might be a purple flower, while a genotype of \( aa \) might result in a white flower (assuming \( A \) is dominant for purple and \( a \) is recessive for white).

The key difference is that genotype is about the genetic code (potential), and phenotype is about the expressed traits (actual, influenced by genes and environment).

Answer:

• Genotype: The genetic makeup of an organism, consisting of the set of genes (alleles) inherited from parents (e.g., \( AA \), \( Aa \), \( aa \) for a trait). It represents the potential traits an organism can express.
• Phenotype: The observable physical/biochemical characteristic of an organism, resulting from the interaction of its genotype and the environment (e.g., purple or white flower color, height of a plant). It is the actual expressed trait.

The main difference is that genotype is the genetic code (potential traits), while phenotype is the expressed trait (influenced by genes and environment).