Answers: 2
Biology, 21.06.2019 18:30, narutoxptheninja
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 2
Biology, 22.06.2019 03:00, Wolfzbayne
Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point
Answers: 1
Biology, 22.06.2019 06:20, justinb0829
Select the correct answer from each drop-down menu proteins are
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Biology, 22.06.2019 10:00, PinkDivaGirl02
1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi
Answers: 3
However, had it been a real sound, the sound's pitch would have been increased by the doppler effect...
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