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.
![Which of the following statements about the differential expression of human genes is correct?
A. Differential expression does not occur during embryogenesis (development of the embryo).
B. The unused genes in differentiated cells no longer retain the potential to be expressed.
C. Gene expression patterns of all cells are identical.
D. Every cell nucleus contains the complete genome established in the fertilized egg.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc7745b53-124a-47c7-a654-ec99321bba2e%2F764fd864-0f62-49b1-8862-3ec64de8affe%2Fdtq2oz7_processed.png&w=3840&q=75)
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