34. Arrange the following list of eukaryotic gene elements in the order in which they would appear in thegenome and in the direction traveled by RNA polymerase along the gene. Assume the gene’s singleintron interrupts the open reading frame. Note thatsome of these names are abbreviated and thus do notdistinguish between elements in DNA versus RNA.For example, splice-donor site is an abbreviation forDNA sequences transcribed into the splice-donor sitebecause splicing takes place on the gene’s RNA transcript, not on the gene itself. Geneticists often usethis kind of shorthand for simplicity, even thoughit is imprecise. (a) splice-donor site; (b) 3′ UTR;(c) promoter; (d) stop codon; (e) nucleotide towhich methylated cap is added; (f) initiation codon;(g) transcription terminator; (h) splice-acceptorsite; (i) 5′ UTR; (j) poly-A addition site; (k) splicebranch site. Concerning the list of eukaryotic gene elements inProblem 34:a. Which of the element names in the list are abbreviated? (That is, which of these elements actually occur in the gene’s primary transcript or mRNArather than in the gene itself?)b. Which of the elements in the list are found partlyor completely in the first exon of this gene (or inthe RNA transcribed from this exon)? In the intron? In the second exon?
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.
34. Arrange the following list of eukaryotic gene elements in the order in which they would appear in the
genome and in the direction traveled by RNA polymerase along the gene. Assume the gene’s single
intron interrupts the open reading frame. Note that
some of these names are abbreviated and thus do not
distinguish between elements in DNA versus RNA.
For example, splice-donor site is an abbreviation for
DNA sequences transcribed into the splice-donor site
because splicing takes place on the gene’s RNA transcript, not on the gene itself. Geneticists often use
this kind of shorthand for simplicity, even though
it is imprecise. (a) splice-donor site; (b) 3′ UTR;
(c) promoter; (d) stop codon; (e)
which methylated cap is added; (f) initiation codon;
(g) transcription terminator; (h) splice-acceptor
site; (i) 5′ UTR; (j) poly-A addition site; (k) splice
branch site.
Concerning the list of eukaryotic gene elements in
Problem 34:
a. Which of the element names in the list are abbreviated? (That is, which of these elements actually occur in the gene’s primary transcript or mRNA
rather than in the gene itself?)
b. Which of the elements in the list are found partly
or completely in the first exon of this gene (or in
the RNA transcribed from this exon)? In the intron? In the second exon?
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