Singapore Junior Biology Olympiad Past Papers -

(d) Name the principle illustrated by the independent assortment of these two genes. (1 mark)

A plant with purple flowers and round leaves (heterozygous for both traits) is self-crossed. singapore junior biology olympiad past papers

(c) If 320 offspring are produced, how many are expected to have purple flowers and pointed leaves? Show your working. (2 marks) (d) Name the principle illustrated by the independent

(a) Draw a labeled diagram of a simple respirometer suitable for this experiment. (3 marks) singapore junior biology olympiad past papers

(d) If the experiment used germinating mung beans instead of crickets, how would the results differ? Why? (2 marks)

In Arabidopsis thaliana , flower color is controlled by a single gene with two alleles: Purple (P) dominant over white (p). Another unlinked gene controls leaf shape: Round (R) dominant over pointed (r).