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A cross is performed between two strains of Neurospora crassa. One parent carries the (A) allele...

A cross is performed between two strains of Neurospora crassa. One parent carries the (A) allele for a gene on the first chromosome and the other parent carries the (a) allele. Indicate ALL possible genotypic arrangements of the spores in the mature ascus:

a) with NO crossover between the gene and the centromere.

b) with a SINGLE crossover between the gene and the centromere.

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