GE2Q084: Which answer gives the best A-Level Biology interpretation for Explain gene pool and allele frequency. using moss evidence from a shaded woodland?

The correct answer is: GE2Q084: Investigate moss at the shaded woodland (sample size 101) to apply Explain gene pool and allele frequency.. Name the independent variable, dependent variable and controlled variable. Keep temperature, area and timing as controls where relevant. Use random/systematic sampling, check representativeness and bias, then evaluate reliability, validity, precision, accuracy, uncertainty, risk and improvements. Compare observed and expected values, calculate chi-squared, then use the critical value to judge significance and the null hypothesis. A gene is a DNA sequence at a locus; an allele is a variant of that sequence. Hardy-Weinberg describes allele-frequency stability under assumptions; natural selection changes allele frequencies when phenotype affects reproductive success.

GE2Q084: The valid answer links Explain gene pool and allele frequency. to named evidence, explicit variables, controls, sampling design and evaluation. It treats correlation as association unless additional evidence supports causation and keeps the gene/allele and Hardy-Weinberg/natural-selection boundaries clear.