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Growth rate

Growth rate

(Science: biology, cell culture, Ecology) The rate, or speed, at which the number of organisms in a population increases.

this can be calculated by dividing the change in the number of organisms from one point in time to another by the amount of time in the interval between the points of time.

The phrase is most often used to describe growth of cells or microorganisms in laboratory cultures and usually expressed as the generation time.


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Which is the best calculation for growth?

Hey all, I need to quantify growth of an algal culture. I count the cell-number at the beginning of my exposure ... setup, I can not count cells in-between. If I could, I would determine a growth rate by doing a linear regression of a log-plot of my cell-nr over time and the slope ...

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by DocMorris
Tue Feb 05, 2013 3:17 pm
 
Forum: General Discussion
Topic: Which is the best calculation for growth?
Replies: 1
Views: 220

Re:

... segment of de minimus impact in context of continued population growth in the 3rd world that will drive toward greater genetic diversity ... eyes. On an evolutionary timescale, it will cause an explosion in the rate of evolution. In the future, people will not just be fiddling with eye ...

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by Rap
Sat May 26, 2012 3:59 pm
 
Forum: Evolution
Topic: Perception and Evolution
Replies: 14
Views: 3824

Re: Industrial Society Destroys Mind and Environment

... the list of things that are destroying environment. . . Promoters of Growth rate, Economy Rate and GDP are the biggest terrorists on earth.......Millions of times bigger ...

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by sushil_yadav
Thu May 10, 2012 9:05 am
 
Forum: Ecology
Topic: Industrial Society Destroys Mind and Environment
Replies: 42
Views: 20898

Theories - Origin of Life

... Yes, a cell under stress conditions might increase its mutation rate, including the rate of “restructuring” events such as inversions and ... except for random changes. Expose them to stress, enough to slow their growth but not enough to kill them off. If they have a programmed response, ...

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by AstraSequi
Tue Mar 27, 2012 2:25 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 548
Views: 534373

Fisher's theorem of natural selection

... going through Fisher's theorem of natural selection It says that the growth rate is equivalent to fitness, but I don't understand why. Could you explain about this please? ...

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by blackdale
Tue Feb 28, 2012 1:42 am
 
Forum: Genetics
Topic: Fisher's theorem of natural selection
Replies: 1
Views: 663
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