Gene flow or migration is the transfer of alleles or genes from one population to another. select the combination of facts that indicate the occurrence of gene flow in the fugate family. i. four of the fugate's seven children had blue complexions. ii. travel in and out of this area was rare in the 1800's, but is more common now. iii. according to doctors, occurrence of the condition is rarely seen anymore. iv. methemoglobinemia at 10-20 percent of hemoglobin can cause blue skin without more serious symptoms.
a) i. and iv.
b) i. and iii.
c) iii. and iv.
d) ii. and iii.