Dictionary » T » Transition

Transition

Definition

noun, plural: transitions

(genetics) A substitution mutation in which a purine is replaced by another purine (e.g. A → G) or a pyrimidine with another pyrimidine (e.g. T → C).

(reproductive biology) The stage of childbirth that occurs before the expulsive phase of labor, and characterized by strong uterine contractions and nearly full cervical dilation.

(general) The passing from one state, form, style or place to another.

verb

To make or undergo a transition.


Supplement

Word origin: L. Transitio: cf. F. Transition. See transient.
Related forms: transitional (adjective)

Compare: transversion (genetics)
See also: point mutation (genetics)


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Cannot get this type of evolution process. Please Help ASAP!

Think colonialism as a transition.

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by Darby
Tue Jul 16, 2013 5:41 pm
 
Forum: General Discussion
Topic: Cannot get this type of evolution process. Please Help ASAP!
Replies: 1
Views: 704

Cannot get this type of evolution process. Please Help ASAP!

Hi so for my lab assignment I am supposed to draw an evolutionary cycle or stage transition from intermediate stages from unicellularity to multicellularity in animals. I have to begin with a unicellular flagelllate, and end with a simple multicellular parazoan. ...

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by xstandards
Thu Jul 11, 2013 4:33 am
 
Forum: General Discussion
Topic: Cannot get this type of evolution process. Please Help ASAP!
Replies: 1
Views: 704

Formation of helices in heterogeneous protein vs. homogeneou

... heterogeneous protein compared to homogeneous protein, other than the propensity for helices being sequence dependent. Relate it to the coil-helix transition, fractional helicity and melting temperature.

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by JordanGo
Fri Oct 19, 2012 8:16 pm
 
Forum: Cell Biology
Topic: Formation of helices in heterogeneous protein vs. homogeneou
Replies: 0
Views: 920

Re: Re:

... make them die? Of course you can. My point is our environment is essentially artificial. We are too dependent on it by now to be capable of easy transition into natural environment should something happen to our artificial one.

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by Cat
Tue Oct 09, 2012 12:14 am
 
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 30608

Theories - Origin of Life

... functioning of such half-organism/half astronomic system.Then, we still are divided between those like Stanley/Urey that believes in the natural transition from non-organic to complex molecules and those like ID, Scottie, NASA, saying that it was impossible the emergency of complex molecules. ...

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by TheMatrixDNA
Sun Aug 05, 2012 12:57 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755216
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