DNA recieves a chemical signal from mRNA to unzip in whatever area is needed. Once it unzips it is copied by mRNA, since DNA is too big to leave the nucleus mRNA does. It goes and attaches to the ribosome where the DNA copy is read 3 letters at a time by tRNA which is a codon. For every codon an aminio acid is formed. They stick together to form a protein. This is called protein synthesis.
Chromosomes
Telophase.
The chromosomes, still composed of two sister chromatids at this point, do uncoil in telophase I and condense again in prophase II. Source: IB Bio student
Telophase, where chromosomes uncoil, spindles disappear, nucleolus and nuclear envelope reappears.
It replicates during Interphase, the stage of Mitosis.DNA is replicated during interphase. This DNA replication takes place during mitosis and allows the daughter cells to have the correct number of chromosomes.
Prophase I: chromosomes start to condense and become visibleMetaphase I: homologous chromosomes line up at equatorial plateAnaphase I: homologous chromosomes separate and move to diferent polesTelophase I: one set of chromosomes arrive at each poleProphase II: chromosomes condense againMetaphase II: individual chromosome line up at equatorial plateAnaphase II: centromere divides, and chromosomes (from chromatids) move to different polesTelophase II: one set of chromosome arrive at each pole.
Telophase.
During the telophase phase, the chromosomes begin to uncoil. There are six phases with mitosis and telophase is number four.
This happens during Metaphase.
The chromosomes, still composed of two sister chromatids at this point, do uncoil in telophase I and condense again in prophase II. Source: IB Bio student
a stage during mitosis consisiting of the regrouping of chromatides and string like chromosomes. In summery Chromosomes uncoil and revert to chromatin; nuclear membranes form around the sets of chromosomes.
a stage during mitosis consisiting of the regrouping of chromatides and string like chromosomes. In summery Chromosomes uncoil and revert to chromatin; nuclear membranes form around the sets of chromosomes.
When replicating or during transcription, DNA needs to uncoil in order to give the proper code. When the chromosomes are condensed, it cannot uncoil itself to give any sort of message. In order for the cell to remain functional, it must be able to code DNA.
When replicating or during transcription, DNA needs to uncoil in order to give the proper code. When the chromosomes are condensed, it cannot uncoil itself to give any sort of message. In order for the cell to remain functional, it must be able to code DNA.
Telophase, where chromosomes uncoil, spindles disappear, nucleolus and nuclear envelope reappears.
a stage during mitosis consisiting of the regrouping of chromatides and string like chromosomes. In summery Chromosomes uncoil and revert to chromatin; nuclear membranes form around the sets of chromosomes.
1:Chromatids are pulled to opposite poles of cell. 2:Nuclear Envelope and Nucleolus reform. 3:Chromosomes uncoil. 4:Spindle Fibers disintegrate.
uncoil or unloopThe opposite action of "to coil" is to uncoil. (The opposite of a coiled path is a straight or flat path.)