(a(i))[4]
Describe the events that occur during prophase I of meiosis in an animal cell.
(a(ii))[2]
Explain how the independent assortment of homologous chromosomes produces genetic variation in meiosis I.
(b(i))[2]
Suggest reasons why infected chickens gain less body mass than healthy chickens.
(b(ii))[1]
Suggest one environmental factor that influences the growth and reproduction of Eimeria.
(c(i))[1]
Name a statistical test that could be used to analyse the results of this investigation.
(c(ii))[3]
Sketch on Fig. 3.1 curves that illustrate the variation in gain in body mass in chickens treated with low dose B. pilosa extract and in chickens treated with high dose B. pilosa extract. Label one curve “low dose” and the other “high dose”.