Question 41

(Multiple Choice)

Please refer to the following information to answer the next few questions.
Diploid nuclei of the ascomycete, Neurospora crassa, contain 14 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of the 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?


A) 100, carried on 7 chromosomes
B) 100, carried on 14 chromosomes
C) 200, carried on 7 chromosomes
D) 200, carried on 14 chromosomes
E) 400, carried on 14 chromosomes

Answer