The iPhone X is goes up for pre-order on Oct. 27. Do you buy from Apple or the four major U.S. carriers (AT&T, Verizon, T-Mobile, Sprint)? We have answers.
A karyotype refers to a full set of chromosomes from an individual that can be compared to a normal karyotype for the species via genetic testing. A chromosome anomaly may be detected or confirmed in this manner. Chromosome anomalies usually occur when there is an error in cell division following meiosis or mitosis.
Nondisjunction can occur in mitosis or during meiosis I or II. If nondisjunction occurs in meiosis I, both chromosomes of a homologous pair. migrate to the same pole, leaving one daughter cell without a chromosome. The. cells go through meiosis II normally, producing four gametes with unusual num-. bers of chromosomes.