Scientists recently discovered that there is this specific gene called "Pitx1" that is responsible for the less of pelvic spines in animals 15,000 years ago. Among the most common example of the animals affected by this gene is are the freshwater skittlebacks.
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Answer:
The correct option is C. Rare alleles tend to remain rare even when they are dominant.The distribution of a gene among individuals is determined by mating and environmental factors.
Explanation:
Most people believe that a rare allele would only be recessive. But this is not correct. A rare allele can be dominant. The frequency of an allele to occur in a population will depend on the environmental factors. The alleles which code for traits that are best suitable for living in an environment will be seen in more abundance. The frequency of an allele to occur in a population also depends on the breeding trends of the population.
ACTUALLY the correct answer is Epipelagic and Mesopelagic in order to find more prey. I just took this question and i got it correct. youre welcome :)
