A) In a normal meiosis, chromosomes align precisely at the recombination ... sequences that typically range in length from 1,000 base pairs to 5 megabases, the cytogenetic level of resolution.

Each chromosome pair viewed in a karyotype appears to have ... which alkylates DNA and is subject to quenching over time. Caspersson et al. demonstrated that quinacrine produced characteristic ...

Each human body cell contains 46 chromosomes. These can be arranged into 23 pairs. Each chromosome in a pair carries the same types of genes. The 23rd pair are the sex chromosomes: In females ...

comprising roughly 155 million DNA base pairs, makes up around 5% of the total DNA in cells. The Y chromosome extends over ...