Sentences with phrase «of pigmentation patterns»

One of the most remarkable trends in the evolution of pigmentation patterns is the repeated, independent occurrence of similar patterns on fly bodies and wings.

Not exact matches

Getting the details right «required many hours of staring,» Nicholls says, as he and Vinther studied how to untangle the overlapping pigmentation patterns left in the various folds of the flattened fossil.

This supports a recent proposal that such cells may be the master control switches of domestication, explaining why domestic animals share common traits, such as smaller brains and certain pigmentation patterns — a mystery first noted by Charles Darwin.

Each humpback's fluke is as unique as a human's fingerprint, and bears a one - of - a-kind pigmentation pattern.

They also used chemical analysis of organic compounds in the scales to infer the dinosaur's pigmentation pattern.

The two prototypes differ in their color pattern that was varied to resemble either the typical pigmentation of their live counterpart or to offer an unnatural color phenotype.

Active chorioretinitis, a possible precursor of chorioretinal atrophy, has not been reported in infants with congenital ZIKV infection, and the pattern of ocular findings differs from those in other congenital infections.56 In particular, retinal lesions, including well - defined chorioretinal atrophy and gross pigmentation, generally affecting the macular region, are unique to ZIKV infection (Figure 3).

Specifically, several phenotypic varieties of zebrafish, taxonomically listed in the Cyprinidae family together with golden shiner, are known to react differently to computer animations of their conspecifics depending on the similarities of their stripe pattern [47], [48] and color pigmentation [48].

Furthermore, assessing the pigmentation diversity patterns of a local region in India led us to examine how strict marriage practices and multi-layered endogamy contribute to the mosaic of skin tones.

In addition, the data reveal that this was a more genetically diverse population than the central and western European hunter - gatherers living during the same epoch and that they also show pattern of adaptation to high latitude environments, including high frequencies of low pigmentation variants as well as a gene region associated with physical performance, which shows strong continuity into modern - day northern Europeans.

Merle is inherited in a dominant fashion, meaning that only one copy of an M allele is necessary for a dog to display some variation of the merle coat color / pattern, which is marked by random dilution of eumelanin (black pigment) leaving patches of normal coat color within areas of diluted pigmentation.

Hair loss with dandruff and pigmentation are common and often there is a «water line» pattern, a clear line of demarcation along the body below which the skin is irritated and above which the skin is normal.

Changes in the skin and coat are common, including dryness, excessive shedding, delayed regrowth of hair, and hair thinning or hair loss (usually the same pattern on both sides), sometimes with increased pigmentation.

The same study found that in Shetland Sheepdogs a mutation of the pigmentation gene known as Silver (or Silv) is probably responsible for the merle pattern.

When other dogs breeds have a random pattern of black spots on their tongue, it is a case of pigmentation from other areas of their body, such as their lips, carrying over to their tongues.

The disorder is usually associated with pigmentation patterns, where the presence of white in the hair coat increases the likelihood of deafness.

Deafness is especially prevalent in dogs that are white, merle or piebald in pattern with incomplete pigmentation of the skin.