Original DNA Sequence: TACAC CT T G GC GAC GACT,.. mRNA Sequence: Amino Acid Sequence: Mutated DNA Sequence #5 TACAC CT TGG G A C G ACT... What's the mRNA sequence? (Circle the change) What will be the amino acid sequence? Will there likely be effects? What type of mutation is this? 1. Which type of mutation is responsible for new variations of a trait? 2. Which type of mutation does not result in an abnormal amino acid sequence? 3. Which type of mutation stops the translation of an mRNA molecule?

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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.