Sentence examples for in ancestral forms from inspiring English sources

In ancestral forms these were interconnected so that gametes from the gonad passed through the pericardial cavity, the nephridial cavity, then to the outside through a nephridial pore.

Evolutionary trends toward increased body size result in the organisms being required to input a greater amount of energy to attain the larger body and the accompanying more complex morphological featurers than in ancestral forms.

Given the accumulating evidences of de novo origin of new genes from previously non-coding DNA sequences [ 2, 34- 40], we propose that the coding sequence of these genes may have recently originated de novo from previously non-coding DNA sequences in the ancestral forms, and subsequently duplicated and dispersed in the genome.

Since the last hypothesis is highly unlikely, we concluded that our observation was a product of a newly evolved gene locus possibly from mutations or modifications on a previously non-coding sequence in the ancestral forms, which was subsequently severally amplified and dispersed in the genome of S. japonicum after all other species of the genus had diverged.

Change in feeding habits in Hapalops from ancestral forms likely resulted from evolution of new or different feeding strategies.

The genes involved in breaking down lactose (the key sugar in milk products) and starch (the key nutrient in domesticated plants) were in an "ancestral" form, the team reports, meaning that hunter-gatherers were not good at digesting these foods, which later became essential to farming societies.

The type II ommatidia of Pieris express PrV both in R1 and R2, which in the ancestral form expressed B opsin.

The evidence for gene elongation, gene duplication, and operon duplication events sugggests, in fact, that the ancestral forms of life might have expanded their coding abilities and their genomes by "simply" duplicating a small number of mini-genes (the starter types) via a cascade of duplication events involving DNA sequences of different size.

However, the need for embryo rescue to achieve the crosses suggests some difference in reproductive biology from ancestral forms.

Although Csk-mediated Src negative regulation is essential in metazoans, studies of ancestral forms of Src have shown that Src can operate without strict control in protists.

Our results point to the possibility of complex evolutionary dynamics of both cultivated and ancestral forms in this semi-domesticated taxon.