There are almost 500 naturally occurring variants of hemoglobin. most are the result of a single amino acid substitution in a globin polypeptide chain. some variants produce clinical illness, though not all variants have deleterious effects. a brief sample follows.
hbs (sickle-cell hb): substitutes a val for a glu on the surface
hb cowtown: eliminates ion pairs at n and c terminus of subunits
hb memphis: substitutes one uncharged polar residue for another of similar size on the surface hb bibba: substitutes a pro for a leu involved in an a helix
hb milwaukee: substitutes a glu for a val
hb providence: substitutes an asn for a lys that normally projects into the central cavity of the tetramer hb philly: substitutes a phe for a tyr, disrupting hydrogen bonding at the a1b1 interface
identify and explain your choices for each of the following:
(a) the hb variant that functions similar to mb.
(b) the variant(s) most likely to show a larger kd for bpg

How will technology impact medicine in the future?

Me plz he did not infringe upon the policy making powers that he felt the constitution gave congress. but the determination of foreign policy became preponderantly a presidential concern. when the french revolution led to a major war between france and england, washington refused to accept entirely the recommendations of either his secretary of state thomas jefferson, who was pro-french, or his secretary of the treasury alexander hamilton, who was pro-british. rather, he insisted upon a neutral course until the united states could grow stronger. which provides the best objective summary of this excerpt? president washington made a good choice when he decided not to accept the recommendations of his advisors and instead insisted that the united states stay neutral during the war between france and england as president, washington believed that the united states should remain neutral in foreign policy even though he had advisors who recommended that he take sides during the war between france and england. washington did not make policy decisions during his presidency because he did not want to interfere with the policy-making powers that the constitution gave congress. washington refused to accept entirely the recommendations of either his secretary of state thomas jefferson, who was pro-french, or his secretary of the treasury alexander hamilton, who was pro-britis

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis