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.
Sister chromatids are aligned along the equatorial plane of the cell http://quizlet.com/37446060/genetics-flash-cards/ 9/32 10/5/2014 Genetics flashcards | Quizlet The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid.