11. A person has the genes that code for him to be approximately six feet tall, but he ends up being only five feet seven inches tall. What could be the cause of this?
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
A gene is a segment of DNA that contains the instructions for building a specific protein or RNA molecule. Genes are the basic units of heredity, responsible for passing traits from parents to offspring. The expression of genes, through processes like transcription and translation, is central to the functioning of living organisms.
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