Which of the following plant diseases is caused by a bacterial pathogen?
A
black sigatoka in bananas
B
tobacco mosaic disease
C
ring rot in potatoes
D
tomato late blight
Markscheme
Communicable diseases, disease prevention and the immune system Questions
40 exam-style questions on OCR A A Level Biology Communicable diseases, disease prevention and the immune system. Each one has a worked solution and a mark scheme showing where the marks go.