The following statements describe SDS-PAGE, a method used to separate proteins. Select the true statements. Assume that SDS-PAGE is performed under reducing conditions. A.A protein binds roughly 1.4 times its mass of SDS resulting in a large overall negative charge. B.SDS-PAGE utilizes agarose gel to separate proteins. C.Smaller proteins migrate faster through the polyacrylamide gel. D.Sodium dodecyl sulfate binds proteins, resulting in protein-SDS complexes that are similar in size. E.Protein-SDS complexes migrate toward the positive electrode. F. Proteins are visualized using a dye that binds to the gel matrix, but not to proteins

Whay is the following best defines climate

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?