The products of genes FII and W prepare lambda heads for attachment of the tails. How would you determine whether these proteins must act in a particular order, and if they do, how would you determine...

The products of genes FII and W prepare lambda heads for attachment of the tails. How would you determine whether these proteins must act in a particular order, and if they do, how would you determine which acts first? Recalling that either of the X chromosomes in each cell of a woman is inactivated, how would you determine whether a carcinoma derived from transformation of a single cell in contrast to transformation of multiple cells?