Certification. If a sonographer has obtained education through a college or university, the sonographer must pass an exam in order to get their certification. Some states require that ultrasound technicians be licensed, which requires them to hold current certification.
diploid â(not comparable) (cytology) Of a cell, having a pair of each type of chromosome, one of the pair being derived from the ovum and the other from the spermatozoon. Most somatic cells of higher organisms are diploid.
The best example of diploid cells is muscle cells while the best example for haploid is sperm. Haploid is the dominant cells in the reproduction process while the number of diploid cells is scarce. The number of diploid cells overall is greater than the number of haploid cells. In a human body, all the cells are diploids except for the ones which are haploids.