Mitotic Cell Cycle Flashcards
Mitosis functions (Include some of stem cells functions)
- Growth
- Repair of damaged tissue
- replacement of damaged cells
- asexual reproduction
Where do stem cells divide?
Bone marrow
In which types of cells is Telomerase enzyme found?
- cancer cells
- stem cells
- activated memory T lymphocytes
In which cell structure can telomerase be found?
Nucleus
Mutated genes that cause cancer are called_
Oncogenes
Cell cycle pie chart proportions. Give the order of pie chart content and list from largest to smallest
Order
G1, S, G2, M, Cytokinesis
(M is not subdivided)
Proportions
G1> G2>M>S>Cytokinesis
When is ATP required during the cell cycle?
G1: to make mRNA for protein synthesis
S: DNA replication
In MCQ questions, when referring to cytokinesis, how many copies of DNA molecules are present?
2 copies
Cytokinesis is only considered pinched and not fully divided yet
MCQ question: Which phase is first to be affected if x is not formed
The phase where x is formed
NOT the phase where it performs its first important function
A-> B-> C if stage B is hindered, which stage can be reached but not completed
Stage A (the one before)
If a stage C is blocked, (given issues occurring in stage A) when does the checkpoint for it occur
Right before stage C.
(Ignore stage A )
What is the main function of Stem cells?
They DIVIDE to form cells that can DIFFERENTIATE into specialised cells
What do centromeres contain?
- DNA (responsible for holding sister chromatids together)
- histone proteins
What inhibits mitosis?
Cell to cell contact
MCQ : in which of the options does mitosis occur [Tip]
Find option which matches mitosis importance ( growth etc)
