Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Are environmental factors more likely to affect genotype or phenotype?
A
Genotype
B
Both equally
C
Phenotype
D
Neither
Verified step by step guidance
1
Understand the definitions: Genotype refers to the genetic makeup of an organism, the information encoded in its DNA. Phenotype is the observable characteristics or traits of an organism, such as its morphology, development, biochemical or physiological properties, and behavior.
Consider how environmental factors interact with organisms: Environmental factors include all external conditions and influences affecting the life and development of an organism, such as temperature, light, nutrients, and social interactions.
Analyze the impact on genotype: Environmental factors do not change the DNA sequence of an organism, so they do not directly affect the genotype. However, they can influence which genes are expressed and how they are expressed.
Analyze the impact on phenotype: Environmental factors can significantly influence the phenotype by affecting gene expression and the organism's development. For example, sunlight can affect skin color, and nutrient availability can influence growth and size.
Conclude that environmental factors are more likely to affect the phenotype because they can alter the expression of genes and the resulting traits without changing the underlying genetic code.