In: Biology
Compare the structure of chromosomes in eukaryotes, bacteria, and archaea.
Answer=
comparison of Structure of chromosomes in eukaryotes ,bacteria and archaea.
Eukaryotic chromosome | prokaryotic chromosome | archaeal chromosome |
1.The genetic material is organized as distinct structural entities called the chromosome. | the typical chromosome formation is absent in prokaryotes. | the typical chromosome formation is absent. |
2.always 2 to many chromosome per cell. | only a single chromosome per cell. | only a single chromosome per cell. |
3.larger than that of prokaryotic chromosomes. |
comparitively shorter than that of eukaryotic chromosome. |
comparitively shorter than that of eukaryotic chromosome. |
4.Each eukaryotic chromosome contains a linear DNA with two ends. | 4.Each prokaryotic chromosome contains a covalently closed circular DNA. | 4.covalently closed circular DNA with replication system more or less similar to eukaryotes. |
5.codes for a large number of proteins. | 5.codes for few proteins. | 5.codes for few proteins. |
6.chromosomes are always enclosed in the nucleus | 6.occupies freely in the center of the cell & not covered by the nucleus. | 6.occupies freely in the center of the cell & not covered by the nucleus. |
7.DNA is associated with histone proteins in eukaryotes. | 7.DNA is not associated with histone proteins in prokaryotes. | 7.DNA is associated with histone proteins in eukaryotes. |
8.chromosomes contains many origin of replications | 8.prokaryotic chromosomes contains only a single origin of replication. | contains only a single origin of replication. |