Imagine the unlikely case that the 11 individuals represented in the gel image above were truly representative of the population. If 1 is the largest and 7 the smallest allele; what is the frequency (f) of allele 5? Give your answer as a percentage, to one decimal place, do not include the % symbol. ANSWER: The frequency (f) of allele 5 in the gel image below is Blank 1 percent. Photograph of UV illuminated 1 % agarose TBE gel run for 40 minutes at 120 V, showing the result of PCR from a variable number tandem repeat region in 11 different individuals (A-K) 2000 1650 1000 850 600 500 A B C D E F G H I J K Key: Lane 1: DNA ladder, see image for fragment sizes (bp). Lanes 2-13: PCR products from the same variable number tandem repeat (VNTR) autosomal region of DNA from 11 different individuals (A-K).
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.
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