Questions tagged [evolution]
Changes in the heritable attributes of populations of organisms over time. The mechanisms of evolution are mutation, migration, drift, and selection.
6 questions from the last 30 days
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asymmetric cell division and plant phyllotaxis
Is there some agreed upon relationship or some consensus about relationship between some asymmetric cell division and some plant phyllotaxis (and fibonacci or other series)?
Or are asymmetric cell ...
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How does genetic recombination affect the Hardy-Weinberg principle?
My textbook states that genetic recombination affects the Hardy-Weinberg equilibrium. But genetic recombination means rearrangement of the existing alleles. Genetic recombination doesn’t create or ...
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Where does Tiktaalik fit on the tree of life? [closed]
Tiktaalik has a combination of fish like features (scales, gills and fin rays) and tetrapod features (flattened head, neck, robust ribs, and limb bones). I know it is a transitional species. AI isn't ...
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Can the human body (specifically features like the brain and ability to make tools) be thought of as an equilibrium point of evolution?
One usually thinks of evolution as an aimless random walk, which is simultaneously also guided by environmental changes, resulting in the time evolution of genetic material and the variety of species ...
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Are birds prevented from having flexible femurs?
The femurs in birds seem to be very limited in movement, something that I always understood as a necessary sacrifice to minimize weight for flight. However, flightless birds such as ostriches also ...
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What type of statistical analysis should I use for non-discrete scores?
I am a 12th grader in an IB Biology course. For my IA (internal assessment, a paper where we conduct an investigation and write a paper on the process and results), I created a simulation of the ...
