Final answer:
Darlene will be allocated $17,500 of the partnership's loss and will be able to deduct $10,000 in the current year.
Step-by-step explanation:
Darlene, as a 50% owner of the partnership, will be allocated 50% of the partnership's loss. In this case, 50% of $35,000 is $17,500. However, to determine the deductible amount, we need to consider Darlene's tax basis and at-risk basis. Since both amounts are $10,000, she can deduct the full amount of $10,000 from the partnership loss in the current year. The remaining $7,500 will be carried forward and can be used to offset future income from the partnership.