Context: In 1964, the biologists Paul Ehrlich and Holm pointed out cases where two or more clines are distributed discordantly—for example, melanin is distributed in a decreasing pattern from the equator north and south; frequencies for the haplotype for beta-S hemoglobin, on the other hand, radiate out of specific geographical points in Africa. As the anthropologists Leonard Lieberman and Fatimah Linda Jackson observed, "Discordant patterns of heterogeneity falsify any description of a population as if it were genotypically or even phenotypically homogeneous".

Question: What did two biologists point out in 1964?
Answer: cases where two or more clines are distributed discordantly

Question: What gene distribution decreases as you move away from the equator in either direction?
Answer: melanin

Question: What do the frequencies for the haplotype for beta-5 hemogoblin do from specific points in Africa?
Answer: radiate

Question: To what profession do both Leonard Lieberman and Fatimah Linda Jackson belong?
Answer: anthropologists

Question: What patterns of heterogeneity falsify any descriptions of population?
Answer: Discordant