There are two events,
A: the selection belongs to the specific species, or
A' : the selection does not belong to the specific species.
People with two copies of the sickle cell gene have the disease. People who carry only one copy of the sickle cell gene do not have the disease, but may pass the gene on to their children. Abnormal hemoglobin, called hemoglobin S, causes sickle cell disease (SCD). The problem in hemoglobin S is caused by a small defect in the gene that directs the production of the beta globin part of hemoglobin. This small defect in the beta globin gene causes a problem in the beta globin part of hemoglobin, changing the way that hemoglobin works.
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5. pauk snelgrove states that oceans cobtribute significantly to not only sustaining life on earth but they are play a crucial part in nutrient
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Most humans would associate the smell of the doctor's or dentist's with something bad or painful, when on the other hand baking cookies or having a nice smell of Thanksgiving can remind us of tasty food and comfort with family or just comfort in general.
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Above ^^
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The larger the amplitude of the waves, the louder the sound. The faster the vibrations, the higher the pitch (frequency) of the sound.
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