Biology, 05.12.2019 22:31 mrtroll3289
Sicle cell disease (scd) is found in numerous populations whose ancestral homes are in the malaria belt of africa and asia. scd is an autosomal recessive disorder that results from homozygosity for a mutant β-globin gene allele. data on one affected population indicates that approximately 8 in 100 newborn infants have scd. epidemiologic data on this population reveal that before the application of modern medical treatment, natural selection played a major role in shaping the frequencies of alleles. heterozygous individuals have the highest relative fitness, and in comparison to heterozygotes, those who are βaβa have a relative fitness of 89 percent, but only about 43 percent of those with scd survived to reproduce. what is the frequency of the wild-type (beta a) allele in this population? express your answer using two decimal places. what is the frequency of the mutant (beta 8) allele in this population? express your answer using two decimal places. what is the frequency of carriers of scd in the population? express your answer using two decimal places.
Answers: 1
Biology, 21.06.2019 20:00, jojo77789
What causes an unsaturated fatty acid to have a different shape than a saturated fatty acid? o a. unsaturated fatty acids have more hydrogen atoms. o b. unsaturated fatty acids have double carbon bonds. o c. unsaturated fatty acids have more nitrogen atoms. o d. unsaturated fatty acids have single carbon bonds.
Answers: 3
Biology, 22.06.2019 04:00, shayshayyy41
What is the difference between how ionic and covalent bonds form
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Sicle cell disease (scd) is found in numerous populations whose ancestral homes are in the malaria b...
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