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Q1. A red blood cell must squeeze through narrow blood capillaries without rupturing its membrane. The strength and flexibility of its plasma membrane depends on the dense cytoskeletal network that consists mainly of actin and spectrin molecules. A blood sample was analyzed to measure the intracellular actin concentration. Out of 10^10 red blood cells counted, 1 mg of actin was purified. Estimate the estimated millimolar concentration of actin in a red blood cell (the average volume of a red blood cell is 100 femtolitres and the actin coding DNA sequence is 1131 base pairs long). Calculations must be made assuming that the minimum significant number has four significant digits.
Q2. If all of phosphorus in a 3.00 gram sample of MgNH4PO4 is extracted and used to make a diphosphorus pentaoxide, what mass of P2O5 could be produced?
Chooses the statement that best describes a buffer. A buffer prevents pH of a solution from changing while an acid or base is added.
Several black guinea pigs of the same genotype were mated and they produced 29 black and 9 white offspring. What would you predict the genotypes of the parents to be?
What changes in the CTD are necessary for recruitment of different proteins at different times during transcription.
what kinds of matings would produce only palominos
Determine the sequence of genes along a chromosome based on the following recombination frequencies: A-B = 8 cM; A-C = 28 cM; A-D = 25 cM; B-C = 20cM; B-D = 33 cM
Our perceptions of the external world are created by our brains. Discuss this concept using the phantom limb phenomenon to support your argument.
q1. in dogs black b is dominant to chestnuts b and solid colour s is dominant to spotted s. what are the genotypes of
Compute the percentage reduction of bacteria accomplished by pasteurization of the milk sample.
Describe the process of pulmonary ventilation, the subsequent changes in partial pressures, and how that relates to the exchange of gases both in pulmonary and systemic circulation.
Imagine you have a population of 4 individuals. Their genotypes are: AA, AA, Aa, and aa. What is the frequency of allele A? If the frequency of allele A in a population is 0.5, what would you guess is the frequency of the genotype AA? (assuming no..
What are the three central elements of chemiosmotic theory for coupling oxidation to phosphorylation in mitochondria?
Wing coloration in the scarlet tiger moth has previously been shown to behave as a single locus, two allele system with incomplete dominance.
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