Answers: 1
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.
Answers: 3
Biology, 21.06.2019 20:00, RealGibbon857
In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote
Answers: 1
Biology, 22.06.2019 05:40, Michcardwell8570
Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.
Answers: 2
In humans microscope nephrons are found in the...
Mathematics, 20.01.2021 01:20