Answer:
Explanation:
1.) All organisms differ in traits such as size and behavior.
2.) No two individuals are exactly alike.
3.) There was a gradual change in each species.
4.) Fossils were different from the living animals. However, these fossils had many similarities to modern forms of life.
5.) Species on the Galapagos Islands resembled species on the mainland but they were different in certain characteristics.
6.) Some organisms became isolated on many islands.
In the study of Gigord and colleagues using Elderflower orchids, the allele frequencies of yellow and purple flowers varied such that when the yellow allele started to become rare, the reproductive success of purple flowers decreased and the reproductive success of yellow-flowered individuals increased in a process known as <u>frequency-dependent selection.</u>
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Frequency-dependent selection is an evolutionary process in which the fitness of a phenotype or genotype is dependent on the frequency of that phenotype or genotype in a particular population.
- Positive frequency-dependent selection raises the fitness of a phenotype or genotype as it becomes more prevalent.
- In the case of negative frequency-dependent selection, the fitness of an increasingly prevalent phenotype or genotype diminishes.
In a broader sense, frequency-dependent selection involves biological interactions that make the fitness of an individual dependent on the frequencies of other genotypes or phenotypes within the population.
Learn more about the frequency-dependent selection here :
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For the answer to the question above asking what<span> differences would you expect to see in a population made up of individuals whose chromosomes experience crossing-over frequently compared with a population made up of individuals whose chromosomes do not cross over? My answer is that </span>I'd expect a larger gene pool and more diversity in the population whose chromosomes frequently cross-over or m<span>uch more genetic variability. </span>
<span>for example different phenotypes are most likely exhibited.</span>
Transcription<span>. </span>Transcription<span> is the </span>process<span> by which</span>DNA<span> is copied (</span>transcribed<span>) to </span>mRNA<span>, which carries the information needed for protein synthesis. </span>Transcription<span>takes place </span>in<span> two broad steps. First, pre-messenger RNA is </span>formed<span>, with the involvement of RNA polymerase enzymes.</span>
