A sheep breeder repeatedly mates closely related animals that have been selected for producing high-quality wool.
Which describes a risk of this breeding method?
More of the lambs may inherit two copies of a harmful recessive allele.
More of the lambs may be genetically identical clones of one parent.
Fewer of the lambs may inherit the alleles for high-quality wool.
More of the lambs may inherit a harmful allele that neither parent carried.
127 exam-style questions on OCR GCSE Biology 6.2 Feeding the human race, covering 6.2.1 Biological factors affecting food security, 6.2.2 Agricultural solutions to growing demand, 6.2.3 Selective breeding, 6.2.4 Genetic engineering, 6.2.5 Steps in genetic engineering, 6.2.6 Benefits and risks of gene technology in agriculture, and 6.2.7 Biotechnological solutions to growing demand. Each one has a worked solution and a mark scheme showing where the marks go.