Singapore Junior Biology Olympiad Past Papers -

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).

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

(c) The student forgot to include a control vial with glass beads (no crickets). Explain why a control is necessary. (2 marks) In Arabidopsis thaliana , flower color is controlled