The garden pea, Pisum sativum, is a species with flowers containing both male and female structures. P. sativum naturally undergoes self-pollination.
(a)[4]
Discuss the advantages and disadvantages of self-pollination.
(b(i))[4]
Fill in Table 4.1 by giving one example for each genetic term.
(b(ii))[5]
Complete the genetic diagrams for test cross 1 and test cross 2.
(c(i))[2]
Choose appropriate allele symbols and give the possible parental genotypes for each cross.
(c(ii))[2]
A test cross cannot be carried out with pickerel weed plants. State why.
Worked solution & mark scheme
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