Question

Gene maps represent the distribution of loci in a genome. A variety of techniques are used to construct gene maps because gene maps of organisms with large genomes are typically constructed by piecing together genome components. In particular, physical mapping approaches provide high resolution and accuracy by using molecular biology techniques. Select the physical mapping methods.

Answer 1

choices
- DNA fingerprinting
- somatic cell hybridization
- in situ hybridization
- pedigree analysis

I did some research and got some contradictory results but perhaps the first three choices?