1. Choose two (2) exceptions to Mendel's Laws and describe them using relevant examples. [10]
2. Distinguish between linkage and recombination. What are their implications for livestock improvement?[10]
3. What are the implications and significance of Mendel's laws on Animal Breeding? Why do we need to study and understand
Mendelian inheritance as animal scientists? [10]
4. In Hereford cattle the gene C codes for white face and is dominant over the gene c for coloured face. On a separate locus,
the gene P for polledness is dominant over p for the presence of horns.
4.1 Give the genotype and phenotype for the F1 progeny from ppCC (hored white face) x PPcc (polled coloured face). [4]
4.2 If the F1's are crossed, what are the genotypic and phenotypic ratios expected? Hint: use a Punnet Square to demonstrate
your answer. [12]