Cross between the purple-flowered plant and white-flowered

Q1. Diploid nuclei of ascomycete Neurospora crassa contain 14 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of daughter cells by one round of mitosis, producing a total of eight ascospores.

If a single, diploid G2 nucleus in an ascus contains 400 nanograms (ng) of DNA, then a single ascospore nucleus of this species should contain how much DNA (ng), carried on how many chromosomes?

Q2. In pea plants, allele for purple flowers (P) is dominant to the allele for white flowers (p). In a cross between the purple-flowered plant and the white-flowered plant, all 73 of the offspring plants had purple flowers. Which of the most likely describes the cross?