Chromosomes are genetic material present in the cell nucleus. Chromatids are the parts of the chromosome present as two arms.
Differences Between Chromosomes and Chromatids
|1||Basic||They are nuclear components and play a vital role in the heredity, mutation, variation, and evolutionary development of the species||These are components of chromosomes. During mitosis, the chromosomes have two asymmetrical structures called chromatids|
|2||Occurrence||The chromosome occurs throughout the cell’s life cycle.||Chromatids are seen or observed during cell division by either mitosis or meiosis|
|3||Replication||The chromosomes are|
capable of self-replication.
|The chromatids do not self replicate on their own.|
|4||Amount of DNA||The chromosomes are tightly packed with DNA. The DNA is found in the chromosome|
throughout its structure.
|The chromatids help in the unwinding of DNA during the replication process.|
|5||Exact copied of each other||The chromosome lacks this.|
Homologous chromosomes may have different forms of a trait with one copy of a gene from the parent.
|The chromatids have the same copies of each other.|
centromere in their structure.
|They usually do not have a centromere in their structure. But the sister chromatids posses centromere.|
|7||Function||The chromosomes are the genetic material of the cell. It helps in the heredity and|
evolution of species .
|The chromatid, on the other hand, helps the cell to duplicate and pass on in the next generation.|
|The DNA of the chromosome in this synthesis of macromolecule is not used||The DNA of the chromatids are used up during this process of synthesis.|
|9||DNA Molecule||the chromosomes have a linear set of gene or DNA in its strands.||Each chromatid bears a single DNA molecule.|
|10||Coiling||The chromosomes are|
extensively coiled with a protein called chromatin.
|The chromatids are less coiled in comparison with|
|11||Interdependence||The chromosomes are independent nuclear material.||The chromatids are the units of chromosomes. They are dependent on chromosomes.|