Dictionary » A » Ancestral



Of, pertaining to, derived from, or possessed by, an ancestor or ancestors; as, an ancestral estate. Ancestral trees.

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Living or not? (viruses,viroids and prions).

... Clearly, the common genes suggest that the viruses share a common ancestor. This leaves two possibilities for the novel ones: either the ancestral virus had a larger collection and its descendants have lost different ones, or each virus picked up different genes from its hosts through ...

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by Sumanth001
Sun Dec 08, 2013 12:37 pm
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 4551

Which mountain range was formed first (historically)?

... 1 shows a map of a particular area. In this map you will find the mountain ranges 1 and 2, the species P, Q and R. Two possible pedigrees of the ancestral history of the species P, Q and R are drawn . Which mountain range was formed first (historically) and which pedigree is correct?

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by DarMick
Tue Nov 05, 2013 4:27 pm
Forum: Evolution
Topic: Which mountain range was formed first (historically)?
Replies: 1
Views: 605

Re: A little help

... and limbs similar to what is occasionally found in whales. Essentially organs, limbs etc that are believed to once have been more developed in ancestral species that have lost their primary functions but still remain in the animal on a permanent basis such as the appendix or only occasionally ...

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by Grisner
Wed Jun 26, 2013 3:57 pm
Forum: Evolution
Topic: A little help
Replies: 5
Views: 1201

Why is knowledge on phylogeny important

... and rather specific course, but I can speculate that the phylogeny of insect pollinators is important because understanding their evolution and ancestral species could give insight into the origin of relations that the pollinators share with plants. Some insects and flowers have co-evolved in ...

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by plasmodesmata11
Tue Jun 05, 2012 8:17 pm
Forum: Evolution
Topic: Why is knowledge on phylogeny important
Replies: 4
Views: 6240

Theories - Origin of Life

... mutations might occur once or twice and then spread through the population by interbreeding - the mutations might have already been present in the ancestral population From my post above, I think it should be fairly clear that the third option is the most likely. However, even if it is incorrect, ...

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by AstraSequi
Tue Mar 27, 2012 2:28 am
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755358
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