Question 19. You need to prepare sequencing libraries of two different DNA fragment sizes. One library should contain DNA fragments of approximately 800 bp and the other 5000 bp. You are going to fragment your DNA using a nebulizer. Indicate the correct statement(s) below: a. To obtain a library of 800 bp fragments, you need to apply lower gas pressure during the nebulization process than for preparation of the 5000 bp fragment library. b. To obtain a library of 5000 bp fragments, you need to apply lower gas pressure during the nebulization process than for preparation of an 800 bp fragment library. c. The gas pressure used during nebulization does not influence the size of the DNA fragments. d. The size of the DNA fragments obtained in the process of nebulization depends on the GC content of the DNA. e. The size of sheared DNA molecules is inversely proportional to the size of the droplets formed during nebulization.
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.
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