Dna Replication Flashcards
DNA Replication happens during which phase
Interphase, Before the cell divides (S1)
Bacteria and its DNA
It has a genetic region with long chromosomes called nucleoids and the smaller circles are called plasmids
What are the three main stages of Dna Replication
Interphase, Mitosis, Cytokinesis
Mitosis def
Single parent cell divides into 2 daughter cells
Interphase Def
Cell seems dormant but goes through G1 S1 and G2
Cytokinesis
The cytoplasmic division of cells brought at the the end of mitosis where seperation of cells happens
G1 Phase
Mitochondria and Golgi Apparatus doubles in mumber and the cell increases in size
S phase
Also known as synthesis phase, Dna Replicates in this phase, Important parts first
Why are strokes or brain damages dangerous
Some brain cells or nerve cells cant replace themselves
What happens toCells in G° phase ?
Some die (embryo stages) some specialise (Muscles) some enter senescence (age, Stop division)
Whats the point of no return for a cell thats divding
The S Phase, It can Stop at G1 or go to S phase and then it will have to divide,
Whats G° stage.
An extended G1 stage where the cell becomes specialised like MUSCLE CELLS
Role of motor proteins
Motor proteins hell pull apart the chromatids , they are on the spindle fibers . Energy is provided my mitochondria which gathers around spindle fibers
Transcription
The process of making MRNA from DNA templates
Translation
The process of making proteins by arranging amino acids in a specific order from instructions from the MRNA
