An individual has two copies of a sickle-cell allele of hemoglobin in which a (historical) mutation replaced the underlined A (see above) with a T. Explain how this change in genotype causes a change in phenotype. For full credit, address (1) the sequence of the protein, (2) the three-dimensional structure of the protein, and (3) the consequences for the red blood cells and the individual.

the answer is:

carbon dioxide

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.