He demonstrated that SCD and sickle cell trait were due to the presence of abnormal 8-globin polypeptides in red blood cells. He demonstrated that the electrophhoretic mobility of B-globin from patients with SCD was different from that of healthy individuals. He demonstrated that both parents of multiple patients with SCD had low levels of sickled red blood cells. He hypothesized that SCD was a recessive trait and that the parents of patients with SCD would be heterozygous carriers. He demonstrated that the difference between B-globin polypeptides in individuals who were healthy and those with SCD is an amino acid substitution. He performed a peptide fingerprint analysis on B-globin from individuals with 84 84 and 89 88, which identified the segment of B-globin that was changed by the BS mutation. James Neel Linus Pauling Vernon Ingram
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<span>Different pressure levels
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Answer: The SA node
Answer choices are:
<span>A. </span>The AV node
<span>B. </span>The SA node
<span>C. </span>The purkinje fibers
<span>D. </span>The AV bundle
The SA node<span> is the heart's natural pacemaker consisting of a cluster of cells located in the upper part of the wall of the right atrium. (the right upper chamber of the heart). The electrical impulses are produced and sent out from there to regulate heartbeat. This is also called the sinus code. </span>
The answer is osmosis
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The purpose of both mitosis and meiosis is to increase the number or population of cells in the body.
<h3>Compare mitosis and meiosis type of cell division</h3>
Mitosis produces two diploid (2n) cells that are identical to the original parent cell whereas meiosis produces four haploid (n) cells that are different from the original parent cell.
Mitosis occurs in somatic cells whereas meiosis occurs in reproductive cells.
So we can conclude that the purpose of both mitosis and meiosis is to increase the number or population of cells in the body.
Learn more about mitosis here: brainly.com/question/19058180
