Skip to content

Course home

Populations (A-level only)

Populations (A-level only)

EasyMediumHard
1234567891011121314151617181920
Question 9

In a woodland population of the peppered moth (Biston betularia), 84% of the moths have the melanic (dark) phenotype. The allele for the melanic phenotype (MMM) is dominant over the allele for the typical (light, speckled) phenotype (mmm).

Use the Hardy–Weinberg equation to calculate the percentage of moths in this population that are heterozygous (MmMmMm) for this gene.

[4]
Markscheme

Populations (A-level only) Questions

  1. A Level
  2. /Biology
  3. /Populations (A-level only)

23 exam-style questions on AQA A Level Biology Populations (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

Question bank