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- Shown below is an R loop prepared for electron microscopy by annealing a purified eukaryotic messenger RNA with DNA from a genomic clone containing the full-length gene corresponding to the mRNA.If a bacterial protein is 3,300 amino acids long, how many nucleotidepairs long is the gene sequence that codes for it?What is a gene? Why are genes for rRNA and tRNA considered to be genes even though they do not produce polypeptides?
- How many comparisons are needed to count the number of duplicates in a list? How many comparisons are needed to find the maximum value in a list of numbers? How many unique length 3 codons coding amino acids can be made from the unique 4 nucleotides found in genes?What is meant by the universality of the genetic code?What codons are used and with what frequency?