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Answers: 3
Biology, 21.06.2019 18:30
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, 22.06.2019 02:00
Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?
Answers: 1
Biology, 22.06.2019 05:00
Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?
Answers: 1
Mathematics, 02.10.2019 08:30
English, 02.10.2019 08:30
Arts, 02.10.2019 08:30
Computers and Technology, 02.10.2019 08:30
History, 02.10.2019 08:30
Mathematics, 02.10.2019 08:30
Mathematics, 02.10.2019 08:30
Mathematics, 02.10.2019 08:30
Mathematics, 02.10.2019 08:30
Mathematics, 02.10.2019 08:30