You have sequenced the genome of a new E. coli strain that you discovered during the metagenomics experiment in the BIOL 123 lab. You noticed that two protein coding genes – Santa and Grinch - are arranged on the chromosome as shown in the map below. The direction of transcription for each gene is indicated by the arrows. Which DNA strand represents the coding strand for each gene? a. Bottom strand for Santa, top strand for Grinch b. Top stand is coding for both genes c. Bottom strand is coding for both genes d. Top strand for Santa, bottom strand for Grinch
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.
You have sequenced the genome of a new E. coli strain that you discovered during the metagenomics experiment in the BIOL 123 lab. You noticed that two protein coding genes – Santa and Grinch - are arranged on the chromosome as shown in the map below. The direction of transcription for each gene is indicated by the arrows.
Which DNA strand represents the coding strand for each gene?
Bottom strand for Santa, top strand for Grinch
Bottom strand is coding for both genes
Top strand for Santa, bottom strand for Grinch
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