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Question: Determine what biological function do methylases perform in bacteria? What adaptive value do they have for a bacterium?
4. The following DNA is part of a gene that codes for a polypeptide of at least seven amino acids:
3' caattgattagtcagtcaatt gat 5'
5' gttaactaatcagtcagttaa cta 3'
a. Which strand includes an Open Reading Frame? Top (T) or Bottom (B)
b. Is this protein generated from the 1st, 2nd or 3rd frame?
c. Give the complimentary mRNA sequence that would be transcribed from this gene; label the 5' & 3' ends.
d) Give the seven amino acids that would be translated from the correct message; label the C & N ends.
Results of this analysis show that one of the most rapidly reassociating classes of DNA is substantially reduced in the older individual with respect to the 2 year-old. How can you describe this finding.
The holoenzyme is denatured by heat at very high temperature. It is found that two polypeptides, although denatured, contains chains that remain together as a unit.
What can deduce about the structure of this protein. he protein elutes in a void volume on a gel filtration column with a fractionation range of 30kDa to 300kDa
Give a mechanistic explanation for finding which is consistent with all the data. Explain your reasoning
Describe how structural modification helped the plant adapt to its environment. Assure the plant you select is an Angiosperm. For example, plants like the mosses, pine trees, and ferns are not the Angiosperms.
Birds and mammals have a four-chambered heart, with two ventricles and two atria, but other modern reptiles have a three-chambered heart, with just one ventricle. Paleontologists debate whether dinosaurs had a typical "reptile-like" heart or a "birdl..
Describe how one media can identify both the selective and differential nature of the organism. What components of PCRs require to be changed in order to identify genetically modified meats or milk? Generally give details why those changes need to be..
What is potentiation and how does it pose a threat to living organisms. what responsibility does carson believe scientists have to the public.
A 5.0 mL aliquot of a stock tryptophan solution was diluted by adding 95 mL of water. The absorbance of that diluted solution was measured at 280 nm as 0.055 absorbance units.
Why or why not explain with reason? Work the genetics problem predicting the frequencies of the versions of this trait among their prospective children.
define the results of the three chi-squared analyses. what do these analyses tell you about the chromosomal arrangements and the genotypes of plants 1 and 2 and the events that occured during gamete production.
A solution containing 80% cytosine and 20% uracil was used to create synthetic RNAs. A bacterial cell free system produced proteins using these mRNAs in the following proportions.
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