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Katarina [22]
3 years ago
14

Which of the following is a situation that could cause evolutionary change that is not due to natural selection

Biology
1 answer:
sp2606 [1]3 years ago
7 0
The answer is

The last one
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1. Look at the DNA molecule shown at right. What does it look like?
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Which subatomic particle contains the energy stored in chemical bonds?
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A particle because it's a particle
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Which of the following correctly compares cloning and gene therapy?
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<em>The correct option is C) Both cloning and gene therapy are types of biotechnology.</em>

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1. In , a population isolated by a geographic barrier becomes a new species as it accumulates changes by natural selection or ge
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  1. allopatric speciation: occurs when a population becomes isolated by a geographic barrier, becomes a new species as it accumulates changes by natural selection or genetic drift. Also known as <em>geographic speciation.</em>
  2. sympatric speciation: a new species that may arise as mating and gene flow are reduced between populations that share the same area. In other words, a group of people from the same ancestral population that may evolve differently until they no longer interbreed and develop into a entirely different species.
  3. polypoid speciation: mostly commonly occurs in plants, where an accident in cell division results in extra set of chromosomes. This has been a major source of speciation in the angiosperms. Polypoidity increases biodiversity and a it is a source of new genetic material for evolution.
  4. Both allopatric speciation and sympatric speciation depends on the establishment of reproductive barriers, which prevents gene flow between a new species and its parent species. Reproductive barriers may arise due to geographical, behavorial, psychological or genetic differences which may prevent species to breed successfully with related species.
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