elow is the 5’–3’ strand of a double-stranded DNA molecule with the following nucleotide sequences: 5’ C C T A T G C A G T G G C C A T A T T C C A A A G C A T A G C 3’ 1. If the above DNA strand is the coding (sense) strand and the DNA molecule is transcribed, what is the correct nucleotide sequence and direction of the RNA formed after transcription? 2. If the RNA synthesized above (item #1) is a functional mRNA and all the nucleotides belong to an exon, a. how many codons are present in this mRNA? b. how many codons actually code for proteins in this mRNA? c. what stop codon is present in this mRNA?
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.
Below is the 5’–3’ strand of a double-stranded DNA molecule with the following
5’ C C T A T G C A G T G G C C A T A T T C C A A A G C A T A G C 3’
1. If the above DNA strand is the coding (sense) strand and the DNA molecule is transcribed, what is the correct nucleotide sequence and direction of the RNA formed after transcription?
2. If the RNA synthesized above (item #1) is a functional mRNA and all the nucleotides belong to an exon,
a. how many codons are present in this mRNA?
b. how many codons actually code for proteins in this mRNA?
c. what stop codon is present in this mRNA?
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