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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?
Jimmie's Produce put out a bin of tomatoes having beautiful red color and looking "just right" in terms of ripeness. A sign above the bin identified them as genetically engineered produce. Most shoppers selected unmodified tomatoes in the neighbor..
Which bones articulate with the humerus?
What roles do contractile, regulatory, and structural proteins play in muscle contraction and relaxation?
In which organism will a transposon more easily spread: in an asexual haploid species, or in a sexual diploid species? Explain.
Which term is not associated with phylogenetics, Which of the following is NOT a synapomorphy? Which of the following can lead to homoplasy?
How would i creat a punnet square for and autosomal diseaseDiabetes? If one parent has it and the other doesn't
Assume you are researching microbial life in the Rocky Mountains. You scoop up a water sample from a melted snow puddle because you are curious about the possible microbes that might live there.
Just before a physiology exam her ventilation increases to 18 breaths per minute from nervousness. Now what is her total pulmonary ventilation? Assuming her anatomic dead space is 120 mL, what is her alveolar ventilation in each case?
If the sheep population in Tasmaania went from 30,000 in 1820 to 1,900,000 in 1850, what was this population's annual r value during this period?
You are studying compound X and are trying to determine whether it is a competitive or a non-competitive inhibitor of an enzyme reaction catalyzed by the enzyme zyrase.
Explain how to make 50 ml of the following 10X Gel electrophoresis loading buffer, 100 mM EDTA (pH 8.0), 0.1 percent and find mature mRNA.
Explain what type of growth you observed in the air dish. ooking at the five steps in viral replication can you identify some promising ways to prevent or control viral infections?
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