The results of gel electrophoresis of 4 different DNA samples given in the figure. 16 ul was loaded into each well (6 μL diluted DNA* + 8 μL water + 2 μL sample buffer). The ladder is in lane 5, with the size and amount (ng) in each band indicated. *1:5 dilutions of the original DNA sample were made, and the diluted samples were used for AGE. Q. These are the conclusions made about sizes and concentrations of the original (undiluted) DNA samples from lanes 1 and 2. Are these conclusions reasonable? Explain specifically, and if any of the conclusions are not reasonable, explain why not and what should we conclude instead. Sample in lane 1:size is 2.32 kb concentration of original DNA sample is 9.2 ng/ul Sample in lane 2:size is 4.36 kb concentration of original DNA samples is 100 ng/ul Q. The sample in lane 3 was expected to be about 2 kb in size. What is a possible explanation for the results observed?
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
The results of gel electrophoresis of 4 different DNA samples given in the figure. 16 ul was loaded into each well (6 μL diluted DNA* + 8 μL water + 2 μL sample buffer). The ladder is in lane 5, with the size and amount (ng) in each band indicated.
*1:5 dilutions of the original DNA sample were made, and the diluted samples were used for AGE.
Q. These are the conclusions made about sizes and concentrations of the original (undiluted) DNA samples from lanes 1 and 2. Are these conclusions reasonable? Explain specifically, and if any of the conclusions are not reasonable, explain why not and what should we conclude instead.
Sample in lane 1:size is 2.32 kb concentration of original DNA sample is 9.2 ng/ul
Sample in lane 2:size is 4.36 kb concentration of original DNA samples is 100 ng/ul
Q. The sample in lane 3 was expected to be about 2 kb in size. What is a possible explanation for the results observed?
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