1Guinea pigs which were homozygous for long black hair were crossed with ones which were homozygous for short white hair. All the F1 offspring had short black hair.
(a) Using suitable symbols, draw genetic diagrams to explain this result.3]
(b) Draw a genetic diagram to show the results of interbreeding the F1 offspring.[5]
(c) State the phenotypes expected in the F2 offspring.[1]