Mr Gumede is a dairy farmer who started his farm with 3 dams and 2 sires. Currently, his having more than 30 lactating cows. However, there is high mortality rate in his herd. Mr Gumede is struggling to find the cause of mortality, because he never bought or exchanged bulls with other farmers for breeding. a) What may be the cause of mortality and explain your answer (8) b) As an animal breeding student, what advice can you give to Mr Gumede? (2)​

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes