Draw a typical eukaryotic gene and the pre-mRNA and mRNA derived from it. Assume that the gene contains three exons. Identify the following items and, for each item, give a brief description of its function: a. 5′ untranslated region b. Promoter c. AAUAAA consensus sequence d. Transcription start site e. 3′ untranslated region f. Introns g. Exons h. Poly(A) tail i. 5′ cap
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.
Draw a typical eukaryotic gene and the pre-mRNA and mRNA derived
from it. Assume that the gene contains three exons. Identify the
following items and, for each item, give a brief description of its
function:
a. 5′ untranslated region
b. Promoter
c. AAUAAA consensus sequence
d. Transcription start site
e. 3′ untranslated region
f. Introns
g. Exons
h. Poly(A) tail
i. 5′ cap
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