American Journal of Botany, Vol. 27, No. 8 (Oct., 1940), pp. 683-686 (4 pages) Metaphase and anaphase chromosomes of the second reduction division of Gasteria spp. hitherto considered as displaying an ...

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from ...

The study of cytogenetics in Hymenoptera reveals a remarkable diversity in chromosomal number, structure and organisation across ants, bees and wasps. Research in this field has illuminated how ...

Scientists at The Hospital for Sick Children (SickKids) and the University of Toronto have generated a topological map of the human genome, shedding light on the role of inter-chromosomal interactions ...

As the cell proceeds through the stages of cell division (from left to right: interphase, prometaphase, metaphase, and anaphase), chromosomes become progressively more compact through a combination of ...

A new article analyzes in depth the physical problems associated with DNA packaging that have often been neglected in structural models of chromosomes. The study demonstrates that the multilaminar ...

Over the past two decades, researchers have learned that DNA inside the cell nucleus naturally folds into a network of ...

Among the many marvels of life is the cell's ability to divide and thus enable organisms to grow and renew themselves. For this, the cell must duplicate its DNA – its genome – and segregate it equally ...