Review A-Level Edexcel Biology simple probability through the available inheritance-style probability evidence, including 1 in 2, 50:50 and 0.5 outcomes.
Most Bengal tigers are orange with black stripes but there is a very small number of Bengal tigers that are white with black stripes.
The photograph shows a white Bengal tiger with black stripes.
White tiger offspring are produced by two Bengal tigers that each carry at least one recessive allele for a gene affecting coat colour.
The pedigree diagram shows the phenotypes in one family of tigers, bred in captivity.
Key female orange tiger female white tiger male orange tiger male white tiger
State the probability that the next tiger born to these two parents will be female.