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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 same preparation of protein was denatured and submitted to SDS-polyacrylamide gel electrophoresis. One band was observed after staining. Explain these results.
At the starting of the spring, Dr. Betty Burner notices that there is an equal distribution of long and short-stemmed dandelions in her backyard.
List and describe at least three cellular features of bacteria that could be targeted to inhibit or kill bacterial pathogen. Which is a significant flaw in this experimental set-up.
how to keeping the shape of the cell. But I have found that there is a primary and secondary cell wall - each has their own function - so I am somewhat confused and looking for guidance.
Determine which type of chromosome structure is characterized by the centromere position very near the end of the chromosome with the short arm composed of highly repetitive DNA?
How many gametes can be generated from an individual along with the genotype CCDd? Utilize a drawing to display the possible ways homologous chromosomes can orient themselves.
List another common type of bias that can takes place in this type of study. Is it likely to have influenced the results here? Explain your reasoning briefly.
A guinea pig farmer, who is also a geneticist, wishes to produce a suitable breeding population. He crossed strain of true breeding small guinea pigs and true breeding large ones.
Assume if we are assessing transcription of two genes, one containing a promoter and the second containing a cis –acting element and an enhancer.
What genotypic and phenotypic proportions are expected in F2. Six platyfish with dissimilar tail spotting patterns live in eastern Mexico. Five of them can interbreed and produce fertile offspring. One of them cannot interbreed with the other five. W..
A analyzer measured BMI in 12 patients who are free of diabetes and participating in a study of risk factors for obesity and found a mean BMI of 31.7 with a standard deviation of 5.9.
Clarify the difference in their efforts to collect oxygen. Polychaetes have lateral, fleshy parapodia beset with numerous setae, and well developed head appendages such as jaws, tentacles and eyes. What function(s) do you think about parapodia serve.
Diploid nuclei of the ascomycete, Neurospora crassa, contain 14 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of daughter cells by one round of mitosis, producing a total of eight ascospores.
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