Frequently Arsed Questions
1. How's it goin'?
A. Not too bad mate, how's yourself ?
2. Excuse me mate, do you know what the time is?
A. According to my sundial, it's night time
3. Do you know how fast you were travelling sir ?
A. Sorry officer, I don't know. I'm a little intoxicated.
4. Would you like a plastic bag with that ?
A. No thanks, I'd rather a planet with that!
5. Hey man, you got a smoke I can bum bro ?
A. Aw, yeah I spose.
6. What about some change too cuz ? I gotta catch a bus.
A. Fuck off cunt!
7. If one side of a triangle is 410.78mm and another side is 743.22mm, what is the hypotinuse ?
A. Is it a right triangle ?
8. Why are you so late ?
A. coz I hate work.
9. You a scruncher or a folder ?
A. Depends on the situation, if the cheeks don't crunch I seem to scrunch but if it spreads like mould I tend to fold !
10. Can you explain in detail the process of mitosis ?
A. Mitosis: (Cell Division via Mitosis)This describes the context of mitosis - explaining its position in the series of processes that, together, form the "cell cycle" for somatic cells (cells relating to the non-reproductive parts of the body) . The four stages of mitosis - prophase, metaphase, anaphase and telophase - are also listed and described.
Mitosis is defined as the type of cell division by which a single cell divides in such a way as to produce two genetically identical "daughter cells". This is the method by which the body produces new cells for both growth and repair of aging or damaged tissues throughout the body - as opposed to for sexual reproduction (when meiosisapplies).
Mitosis is the simplest of the two ways (mitosis and meiosis) in which the nucleus of cells divide - as part of a process of cell division. The context in which mitosis occurs during the "cell cycle" is explained as follows:
The Stages of the "Cell Cycle" for Somatic CellsIn all somatic cells (that is, all cells relating to the non-reproductive parts of the body = all cells except for those of the gametes) the "cell cycle" consists of two periods:
Mitosis (Nuclear Division)
0.Interphase
Interphase is not part of mitosis but is included here as a reminder that interphase preceeds mitosis.
(Hence, it has the number 0.)
Note: Chromatin is a material located in the nucleus of a cells and resembling a thread-like mass. It exists in the form called "chromatin" when the cell is not dividing but forms chromosomes when the cell divides. Chromatin consists of DNA and protein. It can be stained with dyes in order to watch the process of mitosis using a light microscope.
1.Prophase
Metaphase is characterized by the "metaphase plate". This is a mid-point region within the cell that is formed/defined by the centromeres of the chromatid pairs aligning along the microtubules at the centre of the miotic spindle.
3.Anaphase
Cytokinesis (Cytoplasmic Division)Cytokinesis is the process by which the cytoplasm of the original cell forms the two new ("daughter") cells around the two new ("daughter") nuclei formed by the process of mitosis (or meiosis - cytokinesis being a part of both types of processes of cell division).
In the case of animal (as opposed to plant) cells, a cleavage furrow forms around the cell's equator then constricts as a ring until it cuts completely through the cell.
When cytokinesis is complete, interphase begins (see further up this page). This begins the next "cell cycle".
A. Not too bad mate, how's yourself ?
2. Excuse me mate, do you know what the time is?
A. According to my sundial, it's night time
3. Do you know how fast you were travelling sir ?
A. Sorry officer, I don't know. I'm a little intoxicated.
4. Would you like a plastic bag with that ?
A. No thanks, I'd rather a planet with that!
5. Hey man, you got a smoke I can bum bro ?
A. Aw, yeah I spose.
6. What about some change too cuz ? I gotta catch a bus.
A. Fuck off cunt!
7. If one side of a triangle is 410.78mm and another side is 743.22mm, what is the hypotinuse ?
A. Is it a right triangle ?
8. Why are you so late ?
A. coz I hate work.
9. You a scruncher or a folder ?
A. Depends on the situation, if the cheeks don't crunch I seem to scrunch but if it spreads like mould I tend to fold !
10. Can you explain in detail the process of mitosis ?
A. Mitosis: (Cell Division via Mitosis)This describes the context of mitosis - explaining its position in the series of processes that, together, form the "cell cycle" for somatic cells (cells relating to the non-reproductive parts of the body) . The four stages of mitosis - prophase, metaphase, anaphase and telophase - are also listed and described.
Mitosis is defined as the type of cell division by which a single cell divides in such a way as to produce two genetically identical "daughter cells". This is the method by which the body produces new cells for both growth and repair of aging or damaged tissues throughout the body - as opposed to for sexual reproduction (when meiosisapplies).
Mitosis is the simplest of the two ways (mitosis and meiosis) in which the nucleus of cells divide - as part of a process of cell division. The context in which mitosis occurs during the "cell cycle" is explained as follows:
The Stages of the "Cell Cycle" for Somatic CellsIn all somatic cells (that is, all cells relating to the non-reproductive parts of the body = all cells except for those of the gametes) the "cell cycle" consists of two periods:
- Interphase (also known as "interkinesis") is the period in which the cell is not dividing.
This does not mean that little is happening as interphases are very active periods during which cells perform all the functions necessary for life, and also synthesise DNA (deoxyribonucleic acid) so that both of the new cells formed by the miotic phase will contain a complete copy of the original, and so have everything necessary.
and - Miotic phase (M) - when the cell is dividing.
The miotic phase of the "cell cycle" consists of two stages:- Mitosis
Mitosis is the division of the cell nucleus, and is followed by: - Cytokinesis
Cytokinesis is the division of the cytoplasm of the cell into two daughter cells.
- Mitosis
Mitosis (Nuclear Division)
0.Interphase
Interphase is not part of mitosis but is included here as a reminder that interphase preceeds mitosis.
(Hence, it has the number 0.)
Note: Chromatin is a material located in the nucleus of a cells and resembling a thread-like mass. It exists in the form called "chromatin" when the cell is not dividing but forms chromosomes when the cell divides. Chromatin consists of DNA and protein. It can be stained with dyes in order to watch the process of mitosis using a light microscope.
1.Prophase
- Early in the prophase stage the chromatin fibres shorten into chromosomes that are visible under a light microscope. (Each prophase chromosome consists of a pair of identical double-stranded chromatids.)
- Later in prophase, the nucleolus disappears, the nuclear envelope breaks down, and the two centrosomes begin to form the mitotic spindle (which is an assembly of microtubules, which are components of the cytoskeleton).
- As the microtubules extend in length between the centrosomes, the centrosomes are pushed to opposite "poles" (extremes) of the cell.
- Eventually, the spindle extends between two opposite poles of the cell.
Metaphase is characterized by the "metaphase plate". This is a mid-point region within the cell that is formed/defined by the centromeres of the chromatid pairs aligning along the microtubules at the centre of the miotic spindle.
3.Anaphase
- The centromeres split seperating the two members of each chromatid pair - which then move to the opposite poles of the cell: When they are seperated the chromatids are called chromosomes.
- As the chromosomes are pulled by the the microtubules during anaphase, they appear to be "V"-shaped because the centromeres lead the way, dragging the trailing arms of the chromosomes towards the pole/s.
- Telophase begins after the chromosomal movement stops.
- The identical sets of chromosomes - which are by this stage at opposite poles of the cell, uncoil and revert to the long, thin, thread-like chromatin form.
- A new nuclear envelope forms around each chromatin mass.
- Nucleoli appear.
- Eventually the miotic spindle breaks-up.
Cytokinesis (Cytoplasmic Division)Cytokinesis is the process by which the cytoplasm of the original cell forms the two new ("daughter") cells around the two new ("daughter") nuclei formed by the process of mitosis (or meiosis - cytokinesis being a part of both types of processes of cell division).
In the case of animal (as opposed to plant) cells, a cleavage furrow forms around the cell's equator then constricts as a ring until it cuts completely through the cell.
When cytokinesis is complete, interphase begins (see further up this page). This begins the next "cell cycle".