Fig. 1 shows a beekeeper marking queens from two hives. One hive has survived a parasite that killed many bees in nearby colonies. The beekeeper plans to br...
Question 1 Report
Fig. 1 shows a beekeeper marking queens from two hives. One hive has survived a parasite that killed many bees in nearby colonies. The beekeeper plans to breed queens from this hive with drones from another healthy hive. Bee offspring develop from eggs, and traits can be passed through reproductive cells. The beekeeper does not claim that every young bee will resist the parasite, because resistance may depend on several genes and conditions in the hive.
(a) Identify the type of variation that may allow some bees to survive the parasite. [1]
(b) Explain why breeding from two hives is better than breeding only from one queen and her close relatives. [2]
(c) Suggest why the beekeeper should not assume every offspring is parasite-resistant. [1]
Answer Details
(a) Genetic / inherited variation [1] (b) It introduces alleles from another hive [1]; this increases genetic variation and reduces inbreeding [1] (c) Offspring receive different combinations of alleles / resistance may involve several genes or environmental conditions [1]
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