(a(i))[1]
State exactly which stage of meiosis has single chromosomes lined up on the equator.
(a(ii))[2]
Outline the sequence of events that occurs during anaphase I of meiosis.
(a(iii))[2]
Describe how crossing over in meiosis produces genetic variation.
(b(i))[2]
Explain how the data in Table 3.1 demonstrate that the two populations differ in their resistance to mesotrione.
(b(ii))[2]
Explain why this example of genetic variation matters for natural selection in water hemp populations.
(b(iii))[1]
Suggest one benefit of this for a farmer.
(c(i))[2]
Use the formula in Fig. 3.1 to calculate $t$. Show your working.
(c(ii))[2]
Use your calculated value of $t$ to decide whether the null hypothesis should be accepted or rejected.