As a genetic application aCGH means?

Comparative genomic hybridisation (CGH) is a technique that permits the detection of chromosomal copy number changes without the need for cell culturing. It provides a global overview of chromosomal gains and losses throughout the whole genome of a tumour.

Explanation:

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amber has allowed scientists to study dna that has been preserved over millions of years.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint