Chromosomes and Cell Division

Question 1

Basic structure and packaging of chromosomes

Answer 1

Tips of the arms called telomeres, during replication are lost

DNA expressed in sections called euchromatin = more open

denser DNA heterochromatin contains the DNA that the chromosome is not currently using

DNA is packaged and wrapped around histones forming the chromatin which then wraps itself into a fibre becoming the chromosome

Question 2

Process of Mitosis

Answer 2

Interphase

Prophase

Metaphase

Anaphase

Telophase

Cytokinesis