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4 marksGenetic Concepts

CSEC Biology · January 2011 · Paper 2 · Question 6(a)

Differentiate between an 'allele' and a 'gene'.

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  1. 6(b)(i)Using P as the symbol, state the possible genotypes of the purple flowers.[8 marks]
  2. 6(b)(ii)A plant breeder obtained flowers that were purple in successive crops of the same plant species. However, in one crop he obtained a few white flowers. Using a…[8 marks]
  3. 6(c)Genetically identical offspring sometimes show differences in phenotype. Suggest why such differences may occur.[3 marks]

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