A gene is constitutively expressed when it is: a. always copied into RNA, and the RNA is always used to make protein b. used to make 2 different mRNAs from 1 pre-mRNA c. only copied into RNA in certain cell or tissue types, or under certain circumstances d. always copied into RNA, but the RNA is only used to make protein under certain conditions
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.
A gene is constitutively expressed when it is:
- a. always copied into RNA, and the RNA is always used to make protein
- b. used to make 2 different mRNAs from 1 pre-mRNA
- c. only copied into RNA in certain cell or tissue types, or under certain circumstances
- d. always copied into RNA, but the RNA is only used to make protein under certain conditions
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