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.
The situation in meiosis is a wee bit more complicated than mitosis. In meiosis, homologous chromosomes pair (briefly) and each of the four chromatids in that pairing makes it into its own nucleus, giving rise to four haploid nuclei. Unlike mitosis, which occurs in one cell division event, meiosis occurs through two division events.