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.
An astrobiologist discovers a new form of life on another planet. Life here appears to have evolved using DNA as the information storage molecule and proteins to carry out cellular function, much like on Earth, however the individual building blocks on this planet are different. On this planet, there appear to be 3 different
Which of the following conclusions about this form of life would be most justified?
These organisms can produce proteins no more than 30 amino acids in length.
These organisms must produce 30 different forms of mRNA
Amino acids must be coded by sets of 3 nucleotides in the DNA of the organisms on this planet.
Amino acids must be coded by sets of at least 4 nucleotides in the DNA of the organisms on this planet.
These organisms cannot produce more than 30 kinds of protein.
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