The polyA tail of a mature mRNA in eukaryotes a. helps to protect the RNA against degradation. b. acts as a signal for ribosome binding. c. keeps the mRNA in the nucleus until cleavage of the polyA tail releases the mRNA into the cytoplasm. d. a and b, but not c e. a, b, and c
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.
The polyA tail of a mature mRNA in eukaryotes
Transcription is the process of forming the transcript (RNA) from DNA. One strand of DNA acts as a template to synthesize the transcript RNA. It takes place through the usual process of complementary base pairing catalyzed by the enzyme RNA polymerase. Transcription occurs unidirectionally in which RNA chain is synthesized from the 5’ to 3’ direction.
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