Answer :
Final answer:
Prediciting recessive lethal allele frequency over generations is complex and influenced by many factors. The Hardy-Weinberg Equilibrium would suggest the frequency remains the same assuming no natural selection, but in reality, natural selection and other factors influence allele frequencies over time. Exact changes in frequency require detailed knowledge about survival and reproductive rates of individuals.
Explanation:
The matter of predicting the frequency of a recessive lethal allele in future generations is deeply tied to the principles of population genetics. Given the initial frequency of a recessive lethal allele (q), we might initially think the frequency would rapidly decrease over generations.
However, reality is more complex, influenced by factors like genetic drift, the mode of inheritance, and the timing of lethal effect.
By the laws of Hardy-Weinberg Equilibrium, which assumes no natural selection among other things, allele frequencies in a population will remain constant from generation to generation. Therefore, under such ideal conditions, if q = 0.05, the frequency of the recessive lethal allele would remain 0.05 even after 10 generations.
However, in reality, natural selection does come into play, but predicting the exact allele frequency change would require detailed knowledge about the survival and reproductive rates of the individuals carrying the allele.
Relatedly, the number of generations needed to reduce the allele frequency to a certain level cannot be accurately determined without such detailed data.
More realistic models have been developed to predict changes under selection pressure, but these involve more complex calculations and assumptions like the dominance effect, reproductive fitness, etc.
Hence, in a realistic biological context, we typically can't provide a simplified answer to the question without comprehensive information about these parameters.
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