Final answer:
It is true that human history has impacted genetic variation in our species, with factors like migration and cultural practices influencing gene flow and selection pressures.
Step-by-step explanation:
The statement 'Human history has had an important impact on patterns of genetic variation in our species' is true. Human migration and cultural practices such as selective mating have significantly influenced genetic variation and evolutionary change in our species. For example, when humans migrate, they carry their genetic material with them, which leads to gene flow and changes in allele frequencies within populations. Additionally, cultural factors, such as diet changes from hunting to agriculture, have introduced new selection pressures. A clear example is the evolution of lactase persistence in some human populations in response to the consumption of bovine milk.
Another important factor in evolutionary theory and genetic variation is the role of natural selection, which works by selecting for alleles that confer beneficial traits, while detrimental alleles are selected against. Mutations and genetic drift also contribute to the diversity within a population's gene pool. The story of human evolution shows that our species has been remarkably adaptable to various environmental challenges, which continue to drive evolutionary change even in modern times. Overall, human history and cultural practices have played a crucial role in shaping the genetic landscape of Homo sapiens, demonstrating the intertwined nature of biology and culture in evolutionary processes.