11/7/2023 0 Comments Gene flow ap bioSmall populations are more prone to genetic drift than big populations, which can buffer the population against random occurrences due to their higher numbers. → The founder effect happens when a subset of the population (known as "founders") breaks away from the original population to form a new one with varying allele frequencies. → The bottleneck effect happens when a natural disaster or other comparable event kills a big section of the population at random, leaving survivors with allele frequencies that are very different from the prior population. Genetic drift: Random sampling and random events that impact the survival and reproduction of those individuals cause genetic drift, which is the change in the frequency of an allele in a population. Other novel alleles, such as a defective oxygen-carrying protein, maybe instantly harmful, and animals containing these mutations die off.New alleles improve an organism's capacity to live and reproduce, ensuring that the allele survives in the population. ![]() ![]()
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