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cf45-1 and countin mRNAs are present in growing and developing cells. Ax2 wild-type cells were starved on filters, and samples were harvested at the indicated times (in hours) after starvation. (A) A Northern blot of RNA prepared from the samples was probed with a fragment of cf45-1. (B) A similar Northern blot was probed with a fragment of countin. V, vegetative cells.
