Question detail

GX25: In oak seedling herbivory plot, which design best tests Explain gene pool and allele frequency.?

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MCQ

Type

practice

Style

Topic

Genetics and ecosystems official content

Question

  1. A. GX25: Use the oak seedling herbivory plot. Measure leaf-damage score. Change exclosure treatment; record the dependent variable from the data table; hold paired plot map constant. Use random/systematic sampling, representative sample size and bias check. Compare observed and expected values; use critical value, significance and null hypothesis. Correlation means association; correlation does not prove causation. Keep locus-variant evidence separate from allele-frequency model evidence and selection evidence. Evaluate validity, reliability, limitation, conclusion and improvement.
  2. B. GX25: Use casual observations of oak seedling herbivory plot; omit expected values and ignore sample size. Evaluate validity, reliability, limitation, conclusion and improvement.
  3. C. GX25: Change exclosure treatment and paired plot map together, then claim correlation proves causation. Evaluate validity, reliability, limitation, conclusion and improvement.
  4. D. GX25: Discuss Explain gene pool and allele frequency. without a null hypothesis, controlled variable or bias check. Evaluate validity, reliability, limitation, conclusion and improvement.

Answer

The correct answer is: GX25: Use the oak seedling herbivory plot. Measure leaf-damage score. Change exclosure treatment; record the dependent variable from the data table; hold paired plot map constant. Use random/systematic sampling, representative sample size and bias check. Compare observed and expected values; use critical value, significance and null hypothesis. Correlation means association; correlation does not prove causation. Keep locus-variant evidence separate from allele-frequency model evidence and selection evidence. Evaluate validity, reliability, limitation, conclusion and improvement.

Explanation

A precise explanation should use the context, quote or interpret any evidence, and return to Explain gene pool and allele frequency. rather than giving a generic biology statement. GX25: The correct option is supported by leaf-damage score, exclosure treatment, controlled paired plot map, representative sampling, observed and expected values, and a cautious correlation judgement. Evaluate validity, reliability, limitation, conclusion and improvement. If data are provided, the answer should identify the pattern first and then explain the biological significance.

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gene pool and allele frequency. MCQ 3 | AQA A-Level Biology | ExamCompanion