Red-green colorblindness in an X-linked trait. The normal al…

Red-green colorblindness in an X-linked trait. The normal allele is dominant and the allele that causes color blindness is recessive. Approximately 1 in 12 males of N. European ancestry are red-green color blind. What frequency of females of N. European ancestry are red-green color blind? 

Sickle cell anemia shows autosomal recessive inheritance. In…

Sickle cell anemia shows autosomal recessive inheritance. In individuals who can trace ancestry to regions where malaria is endemic, the incidence of sickle cell anemia is approximately 1 in 500. In 50, 000 individuals who can trace ancestry to a malaria endemic region, approximately how many individuals are heterozygous? (I used 5 decimal places in numbers in my calculation to generate the answer). p2 + 2pq + q2 = 1