between male and female figs and since chemical signals have been shown to be sufficient to attract specific pollinating fig wasps in the absence of other cues13, pollination by deceit in dioecious figs can be hypothesized to depend on mimicry in the chemical composition of floral scent. Yet, ...
Protein coding features can emerge de novo in non coding transcripts, resulting in emergence of new protein coding genes. Studies across many species show that a large fraction of evolutionarily novel non-coding RNAs have an antisense overlap with protei
Our method is based on constructing parsimonious scenarios, which can describe occurrence patterns in a phylogeny of species. The ages presented are shown to be robust to the different trees or data types used for their generation. They show correlations with other previously used protein age ...
1. Trees of genes as trees of species Trees of gene and protein sequences are typically con- sidered most valuable when they can be justified as representing trees of species. To achieve this representa- tional status, a gene or a set of genes have to meet some criteria of genealogical ...
For example, Goodwin (1994) indicates that an archaeologist can use a trowel to highlight the color patterning in the soil when others find such patterns difficult to detect. Even the physical ground can have powerful persuasive effects on a person who perceives it. It is easy to infer, ...
Again, these sequences can be used to generate a phylogeny for all of the sampled species (the tree should be rooted with the most distantly related species, in this case the horse). The resultant tree can be inspected to reveal where whales arose (whales form a clade with dolphins and ...
a taxonomic description. To this end solutions for a number of practical problems must be found, including a way in which molecular data can be presented to fulfill the formal requirements every description must meet. Multi-gene barcoding and a combined molecular species delineation approach recently...
Which of these functional groups is known to be used for storing large amounts of chemical energy? a. amino group b. carbonyl group c. phosphate group d. sulfhydryl group 886 Textbook Question The synthesis of ATP from ADP and a. stores energy in a form that can...
Superfetation is known to promote polyandry in some mammals because sequential litters can be fathered by different males38. We predicted, and found, that the evolution of superfetation is associated with the evolution of placentation34. A consequence of superfetation in Poeciliinae is that ...
and charge neutralisation of the 5′ nucleotide. To test this hypothesis, further work is needed to find the sequence of the template that triggers the DNA primase activity. Then, site-directed mutagenesis can be used to probe the role of putative important residues pointed out by our model....