Sentence examples for evolutionary enigma from inspiring English sources

The Cryptophyceae are an evolutionary enigma.

Why schizophrenia has accompanied humans throughout our history despite its negative effect on fitness remains an evolutionary enigma.

Although humans have about as many follicles as other primates, the hairs are fine, exposing the skin and creating an evolutionary enigma.

They are considered an "evolutionary enigma" in that they are the largest of the extant species in Lemuridae, yet exhibit reproductive traits more common in small, nocturnal lemurs, such as short gestation periods (~102 days) and relatively large average litter sizes (~2 3).

Within that diversity, traumatic insemination stands out as an evolutionary enigma.

For a long time, the origin of this RhD polymorphism was an evolutionary enigma.

The physiological and biochemical conditions that promoted such an evolutionary event remain an enigma.

Why and how asexuality arises from otherwise sexual species remains, for the most part, an enigma to evolutionary biologists.

The preservation of a homomorphic sex-determining chromosome in some organisms without transformation into a heteromorphic sex chromosome is a long-standing enigma in evolutionary biology.

One of the more challenging current enigmas for evolutionary immunogeneticists is to understand this evolutionary leap which took place in the ancestor of jawed vertebrates and led to an adaptive immune system complete with recombination-activating genes (RAG), immunoglobulins, hypervariable TCRs, and their functional partners, the MHC class I and class II molecules [ 16, 17].

Our data provide novel insights into the architecture of gene expression in the allopolyploid nucleus, raise questions regarding the responsible underlying mechanisms of genome dominance, and provide clues into the enigma of the evolutionary prevalence of allopolyploids.