the gene above is transcribed into a functional mRNA, a.) how many codons will be carried by the functional mRNA? b.) what is the sequence of the 25th codon? c.) what is the sequence of the stop codon? 2. If the mRNA transcribed for this gene will be
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.
1. If the gene above is transcribed into a functional mRNA,
a.) how many codons will be carried by the functional mRNA?
b.) what is the sequence of the 25th codon?
c.) what is the sequence of the stop codon?
2. If the mRNA transcribed for this gene will be translated into a functional protein,
a.) how many amino acids will be used to build the polypeptide chain?
b.) what is the amino acid coded by the 25th codon?
c.) what is the amino acid coded by the last codon?
![N.B.: Transcription proceeds in 5'-3' on the DNA template. Ribosomes move in 5'-3' along
the mRNA beginning in 5’AUG3' codon.
PROCEDURE
Below is segment of a DNA coding strand (5'-3') with functional gene highlighted in yellow:
1261 tcgcaactct ctactgtttc tccatacccg tttttttggg ctagaaataa ttttgtttaa
1321 ctttaagaag gagatataca tatggctago aaaggagaag aacttttcac tggagttgtc
1381 ccaattcttg ttgaattaga tggtgatgtt aatgggcaca aattttctgt cagtggagag
1441 ggtgaaggtg atgctacata cggaaagctt acccttaaat ttatttgcac tactggaaaa
1501 ctacctgttc catggccaac acttgtcact actttctctt atggtgttca atgcttttcc
1561 cgttatccgg atcatatgaa acggcatgac tttttcaaga gtgccatgcc cgaaggttat
1621 gtacaggaac gcactatatc tttcaaagat gacgggaact acaagacgcg tgctgaagtc
1681 aagtttgaag gtgataccct tgttaatcgt atcgagttaa aaggtattga ttttaaagaa
1
1741 gatggaaaca ttctcggaca caaactcgag tacaactata actcacacaa tgtatacatc
1801 acggcagaca aacaaaagaa tggaatcaaa gctaacttca aaattcgcca caacattgaa
1861 gatggatccg ttcaactago agaccattat caacaaaata ctccaattgg cgatggccct
1921 gtccttttac cagacaacca ttacctgtcg acacaatctg ccctttcgaa agatcccaac
1981 gaaaagcgtg accacatggt ccttcttgag tttgtaactg ctgctgggat tacacatggc
2041 atggatgagc tctacaaata atgaattega gctcggtacc cggggatcct ctagagtcga
2101 cctgcaggca tgcaagcttg gctgttttgg cggatgagag aagattttca gcctgataca](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd640fc69-2d12-4138-981d-25c94c20c236%2F2e9a403c-d1c7-4a3a-947f-b492e88b6656%2Fe3v3ii8_processed.png&w=3840&q=75)
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