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Edexcel A-Level Biology AS 4.21 Conservation By Zoos and Seed Banks Questions

State the conservation aim, explain how the method preserves viable genetic material and balance practical success against diversity, welfare or storage limitations.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • explain how breeding links, movement or education support endangered populations
  • describe seed collection across plants or locations to preserve genetic diversity
  • evaluate drying, cold storage or cryopreservation through viability and germination

Edexcel A-Level Biology AS 4.21 Conservation By Zoos and Seed Banks Questions question 1

[Maximum number: 3]

The photograph shows a mother and baby Malayan tapir (Tapirus indicus). They live in the rainforests of southeast Asia. Each gamete of a Malayan tapir contains 26 chromosomes.

Figure for Question Edexcel A-Level Biology AS 4.21 Conservation By Zoos and Seed Banks Questions question 1 — Edexcel A-Level Biology AS

© Sipa US / Alamy Stock Photo

The map shows the change in distribution of the Malayan tapir over the past 20 years.

Figure for Question Edexcel A-Level Biology AS 4.21 Conservation By Zoos and Seed Banks Questions question 1 — Edexcel A-Level Biology AS

A study suggested that the genetic diversity of the Malayan tapirs has decreased due to populations being separated from each other.

Explain how a captive breeding programme could maintain the genetic diversity of Malayan tapir populations.

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