Biology
Biology, 21.06.2019 18:30, smelcher3900

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.

answer
Answers: 3

Other questions on the subject: Biology

image
Biology, 20.06.2019 18:04, Bradgarner772
What is the m’naughten rule? how did this rule come into existence?
Answers: 2
image
Biology, 22.06.2019 02:50, andrew8228
Which entry is in the wrong position in the table?
Answers: 3
image
Biology, 22.06.2019 07:30, TheaMusic524
Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.
Answers: 2
image
Biology, 22.06.2019 16:00, picktigers4406
Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1
Answers: 1
Do you know the correct answer?
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-sahar...

Questions in other subjects:

Konu
Mathematics, 21.05.2020 23:13