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.
At each origin of replication, DNA synthesis proceeds bidirectionally from two replication forks. Which of the
following would happen if a eukaryotic mutant arose
having only one functional fork per replication bubble?
(See diagram.)a. No change at all in replication.
b. Replication would take place only on one half of the
chromosome.
c. Replication would be complete only on the leading
strand.
d. Replication would take twice as long.
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