Question

pyrG 位于米曲霉基因组第几条染色体

Answer 1

First,Goolge"米曲霉" to get the standard species name http://www.***.com/wiki/%E7%B1%B3%E6%9B%B2%E9%9C%89

Second,query the name in NCBI Taxonomy.

Lastly,using the links provide the NCBI.You will find that the gene on the third chromosome.