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Biochemists make stock solutions of reagents and use them to make working concentrations of buffers. Some of these includeA. 1 M Tris-HCl (pH 7.6)B. 1 M Dithiothreitol?C. 2 MKCl?D. 1 M K2HPO4E. 1 M KH2PO4?F. 1M Potassium Phosphate (pH 7.2)G. 10 M NaOH?H. 1 M ZnSO4?I. 1 M MgCl2?J. 0.5 M Na2EDTA.Describe how to construct these stock solutions. You decide on the final volumes and show your calculations. Note: 1 M ZnSO4, 1 M MgCl2, and 1 M Dithiothreitol should not be greater than 50 ml because they are used sparingly.
Some times in the movie, politics of science were discussed. Explain how politics played a role in the discovery of DNA structure. Do you think the science of today is more or less political than it was during the 1950s? Examine one instance of moder..
Ecoli with mutated Oric sequences can still replicate its chromosome, though very slowly. One mechanism of this origin independent replication depends on initiation of transcription.
express the role of double helix in complimentary base pairing in DNA replication.
Which of following statements is NOT true about the chemical bonds? Both kinds of the chemical bonds involve electrons in the outer shell. Covalent bonds share the electrons between two atoms.
Assume you are studying three traits in tropical fish: black and white striped pattern is completely dominant to solid color. For eye color, brown eyes are dominant to hazel eyes.
express the processes of transcription and translation
Monarch butterfly populations are found east and west of Rocky Mountains. How can DNA fingerprinting technology be used to establish that they constitute one breeding population or two separate breeding populations.
The offspring of a cross between the purple flowered plant and the white flowered plant are 23 plants with purple flowers and 26 plants with white flowers. What are the genotypes of the parent plants, and witch allele is dominant? Apply the letters W..
It is frequently when the environment changes in some way that is unfavourable to an existing population that the organisms begin to reproduce sexually. Explain the importance of this switch from asexual to sexual reproduction.
The nutritional data on a cereal box shows that one serving of a dry cereal has 200 kilocalories. If one were to burn one serving of the cereal,
A white lady, aged sixty, and she has lived in the USA all her life. She has three children, is 160 cm high and weighs ninety kg.
as all action potentials are identical, the intensity of a sensation depends on.
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