Start learning →

PUCET (Punjab) Natural Selection — practice questions

Explore 1 free Natural Selection questions in PUCET (Punjab) Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Natural Selection with Quill →

Natural Selection questions and exercises with answers

Showing questions 1–1 of 1.

Industrial melanism in **Biston betularia (peppered moth)** is a classic example of:Read the answer and worked solution →

Worked practice questions

Industrial melanism in **Biston betularia (peppered moth)** is a classic example of:

  1. Genetic drift
  2. Lamarckian inheritance
  3. Natural selection (directional)
  4. Bottleneck effect
Show answer and solution

Correct answer: C. Natural selection (directional)

**Before industrialisation:** pale, lichen-camouflaged moths predominated. After soot blackened tree trunks, dark (carbonaria) form became favoured by selection (camouflaged from predatory birds). A directional natural-selection example.

Open this question →

How to practise

  1. Choose a Natural Selection question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Biology topics

Molecular Basis of InheritanceSexual Reproduction in Flowering PlantsHuman ReproductionCell Cycle and Cell DivisionPrinciples of Inheritance and VariationPrinciples Of InheritanceReproductive HealthHuman Health and Disease