Question

select techniques that are microscopy techniques to identify duplications and deletions. check all that apply karyotyping fluorescence in situ hybridization comparative genomic hybridization polymerase chain reaction (pcr)

Explanation:

Karyotyping involves visual - izing chromosomes under a microscope to detect large - scale chromosomal abnormalities like duplications and deletions. Fluorescence in situ hybridization (FISH) uses fluorescent probes to bind to specific DNA sequences on chromosomes, which can be visualized under a microscope to identify duplications and deletions. Comparative genomic hybridization (CGH) also involves microscopy - based analysis to compare the DNA copy number between a test and a reference sample. PCR is a molecular biology technique for amplifying DNA and is not a microscopy technique.

Answer:

A. Karyotyping
B. Fluorescence in situ hybridization
C. Comparative genomic hybridization