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The diploid genome in a human somatic cell consists of approximately 6 billion base pairs. (a) If you connected all the chromosomes end-to-end, how long is the DNA in each cell based on the crystallographic dimensions of the DNA double helix? How much does it weigh? (b) If you condensed the entire DNA in a human somatic cell into a sphere, what would the diameter of that sphere be? (Hint: find the volume of the cylindrical DNA string in (a) first). (c) There are approximately ten trillion cells in the human body. What is the total weight of the DNA in your body? If you connected all the DNA in your body into one long string, how many times would it reach to the sun and back? (d) There are about 7 billion humans living on earth. If you connected all their DNA together, how many light years long would that string be? How does that compare to the size of our galaxy, the milky way?
Explain two ways in which a change in a DNA molecule could lead to the emergence of a constitutive mutant. How could these two types of constitutive mutants be distinguished genetically.
How will each of these components be digested? Where within the digestive system will they be digested? Are any accessory organs involved.
A student, who has not learned properly how to prepare solutions, added 25.7 g of sucrose to exactly 150.0 mL of dH2O and assumed that a 0.5 M solution had been prepared. The total solution volume increased to 168.0 ml after sucrose was dissolved and..
Determine the maximum theoretical number of water molecules that one urea molecule can hydrogen bond with?
The bases in this "glyceronucleic acid" are symbolized as B, D, H, and U. The monomers are linked during phospodiester bonds and the bases form hydrogen bonds between the strands according to the following rules; for every B, there are twice as many ..
The body temperature in humans is maintained about the 37 C. Which characteristic of life does this statement represent? Living things respond to stimuli. Living things are homeostatic.
Evaluate and contrast the philosophies of John Locke and Charles Darwin as they relate to developmental theory. In designing the drug that would bind to the active site and jam it, researchers must use which type of molecule.
give difference between the free energy change for a reation and the standard free energy change (delta-G°') for the reaction.
Describe how a slight (but smooth) contraction differs from a vigorous contraction of the same muscle using the understandings of multiple motor unit summation.
G for complete oxidation of glucose is -686 Kcal/Mole. According the G for ATP and number of ATP's produced from the complete oxidation of glucose calculate the efficiency of biological oxidation of glucose by respiration.
Consider that, in the hypothetical study given in the table below, cases underestimated their exposure and, as a result, 20% of exposed cases were falsely classified as unexposed.
LDL particles have a higher percent content of cholesterol and cholesterol esters than VLDL particles. Describe the catabolism of the VLDL particles that occurs in the circulation and how this accounts for the increased content of cholesterol in t..
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