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A strain of E. coli contains a mutant tRNALeu. Instead of recognizing the codon 5' CUG 3', as it does in nonmutant cells, the mutant tRNA recognizes the codon 5'GUG3'. A missense mutation of another gene, bug, affecting amino acid number 28 of the Bug protein, is suppressed in cells with the mutant tRNALeu.
What amino acid would be inserted at postion 28 of the mutant polypeptide chain if it is not suppressed?
What amino acid is inserted if the mutation is suppressed?
A purified, active preparation of carbonic anhydrase was submitted to native polyacrylamide gel electrophoresis at alkaline pH. Three major bands were observed after staining
The energy of the reactants of the reaction are indicated through the vector labeled and the change in the free energy of the reaction is labeled.
The autosomal allele for curly wings in fruit flies is dominant but lethal when homozygous. The allele for white eyes is X linked and recessive to the wildtype allele for red eyes. In a cross of a curly winged red eye male to a curly winged white ..
A molecular level description means that you must explain the structure of water and how that structure leads to the observation made- in this case that water beads on waxes.
In Staphylococcus epidermidis, bacillus subtilis and escherichia coli, which one has gram- positive, which one has gram-negative? Also, which organism is the biggest? Which one is the least.
What are the underlying mechanisms that help assist a species to originate using sympatric speciation although they are not reproductively isolated like in allopatric speciation.Diversity within species that is using sympatric speciation.
Which of the recombination process (transformation, conjugation, and transduction) would be most likely to occur in the natural environment? What factors would encourage or discourage your choice from taking?
how to Analysis of base composition from DNA. Using this data predict the % of adenine. If the same were detected in Tobacco Mosaic Virus [TMV], will it be possible to predict the % of adenine. This job gives reasons.
Red blood cells discovered in the plasma of mammals do not contain a nucleus. List all the possible benefits and limitations imposed on these cells by not having a nucleus.
A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15 hours. When train arrives in Madison the conductor notices it actually took them 3.26 hours.
Asume you have isolated a novel transcription factor. How will you determine the genes regulated through transcription factor in the whole genome?
Describe how the hypothalamus controls secretion from the pituitary gland. Be specific regarding circulation and communication between the two regions.
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