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Homology in X and Y Chromosome

Roughly how long would it take to 'map' a 'Y' chromosome:days, weeks, months?

Using FISH, human and animal X chromosomes have been compared. To look for homology, could this comparison also be done using Y chromosomes?

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The non-recombining region of the Y chromosome (NRY), which comprises 95% of the chromosome, does not undergo sexual recombination and is present only in males. An understanding of its biological functions has begun to emerge from DNA studies of individuals with partial Y chromosomes, coupled with ...

Solution Summary

Homology among X and Y chromosome is not possible as they are not absolutely homologous to each other. However, in plants very small portion of X and Y chromosomes are homologius to each other.