Mitosis lab answers

Every somatic cell undergoes a phase called mitosis. Mitosis is the division of the nucleus to form two genetically identical nuclei.

There are four phases of mitosis: prophase, metaphase, anaphase and telophase. Prior to mitosis is interphase when the cell grows and duplicates all organellesand post-mitosis is cytokenesis when the cell membrane pinches together to split the actual cell in half to form two cells animal or when a cell plate is formed to separate the cells plant. Cells divide to replace old, dead cells, to grow and to reproduce new organisms.

It can be predicted that all somatic cells will undergo all the stages of mitosis multiple times in their lifetime, that the viewed will be able to see the chromosomes at one stage of mitosis. Finally, it is predicted that the cells will not look large or clear, but it will still be able to give me a general idea of what is going on.

When observing the onion root tip cells for the stage of prophase, the cells took on a brick-like structure and within the cells, small dots the nuclei can be seen. The stage that the cell is currently in is prophase. Also, the cell walls in the onion root were barely visible, but the nuclei were very clear. This was all seen in X total magnification. When observing the whitefish embryo cells for the stage of metaphase, the cells took on a circular shape and, like the onion root cell, many nuclei can be seen.

In a certain cell, the chromatin, that was condensing during prophase, line up at the equatorial plate. That certain cell is in the metaphase stage.

mitosis lab answers

This was, like the onion root cells, viewed at X total magnification. When observing the whitefish embryo for the stage of anaphase, the overall cell shape stayed the same and they still had a circular shape.

mitosis lab answers

In a certain cell, the chromosomes condensed chromatinthat were lined up in the previous stage, break apart from their duplicates and head towards opposite centrioles.

The stage that the cell is currently in is anaphase. Like the last two specimen, this was viewed in X magnification. When observing the whitefish embryo cells for the stage of telophase, the overall shape stayed the same except for one cell which is currently in the telophase stage.

The cell that is in the telophase stage looks like two circular cells joined together. In this stage the chromosomes reached the centrioles and a nuclear membrane begins to form around each nucleus. This was also viewed at X magnification.

If a mother cell has 10 chromosomes, each daughter cell will also have 10 chromosomes. The mother cell duplicates its chromosomes so that each daughter cell will receive the exact number that they originally have. It states that all somatic cells will undergo the stages of mitosis multiple times throughout their overall lifetime and they do.

It stated that the viewer will be able to see the chromosomes in one stage of mitosis and, during the prophase, metaphase and the anaphase stages, the viewer is able to see the chromosomes. The final statement is that the cells seen using the microscope will not be very large or clear, but it will be sufficient enough for a general idea of what is going on.

That final statement is also correct because the cells were very small and unclear, but the viewer is able to see what is taking place. Overall, I have learned that onion root tip cells and whitefish embryo cells are constantly reproducing and creating new cells, how to calculate the percentage of cells in a stage of mitosis, and, finally, that the chromosomes are visible using only a light microscope. Article last reviewed: St.Procedure: You will be given a slide of Allium, which is an onion root tip.

Growth occurs when cells divide, so the root tips should have several cells in the process of cell division. View the root tip under the microscope and search for organized blocks of cells where nuclei are plainly visible.

Most activity will be occurring at the tip of the root. Move the slide around until you find a good spot that shows the cells in various stages of mitosis. Cells of the onion are growing so it is easy to find cells in various stages of mitosis. The majority of the cells in your specimen were in which stage of the cell cycle? In allium, interphase lasts about 15 hours, and mitosis takes up 80 minutes.

Assuming that each stage of mitosis takes the same amount of time, how many hours old is a cell that is just starting anaphase. Yes, you'll need to do some algebra here - show your work 80 minutes means that each of the four stages PMAT takes 20 minutes.

When a cell is just starting anaphase, it has already gone through prophase and metaphase, so it is 40 minutes old. Sketch one cell in any stage of mitosis. Label the stage and label any cell structures that are visible.

The spindle fibers and chromosomes should be visible. Which stage of mitosis is the easiest in your opinion to see on the slide? What about it makes it easy to identify? Answers vary, the majority of cells are in interphase, but you can usually find one or two in the other stages.Thank you for a wonderful trip it really made our anniversary something to remember Jon, United States express iceland, May 2015 We absolutely loved the tour of Iceland.

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If the race finishes under Safety Car conditions but the safety car has not had time to get to the front of the leading car this market will be settled as Yes. Virtual Safety Car periods do not count. The winner is the driver achieving the highest placing at the time of the podium presentation.

Onion Root Cell Cycle Lab Answers

If all drivers in the group fail to be classified then the driver completing the most laps will be deemed the winner. If all drivers in the group fail to be classified and two or more drivers retired on the same lap then dead-heat rules apply. Drivers are grouped together for betting purposes only. Bets will be settled on the official FIA result at the time of the podium presentation. Driver must start 1st formation lap. Bet settlement will be determined by which lap number a car retires on.

Should more than one car retire on the same lap then dead-heat rules apply. Settlement will be based on official FIA results.

Bets will have action once the 1st formation lap starts. The winner is the constructor of the first car to retire. Each driver's handicap is applied to their race time.

mitosis lab answers

The driver with the best race time after applying the handicap is considered the winner of this market. Race Leader must complete 40 laps for bets to stand. Bets stand irrespective of individual withdrawals. Any driver who does not finish the race or whose official classification is 1 lap or greater behind the winner will be deemed a loser. Bets are settled on the first completed lap of the original race start.

Any official restarts are disregarded, unless in the original race the first lap is not completed fully.Championship BettingAll-in, compete or not. Bets will be determined by the number of points accumulated following the podium presentation of the final race of the season and will not be affected by any subsequent enquiries. If the points are level then dead-heat rules will apply, unless the result is determined by the competition rules. Individual Race BettingNon-runner no-bet - Rule 4 (Deductions) may apply.

All riders in place to start the warm-up lap are deemed as runners. The podium positions will be used to determine 1st 2nd and 3rd for betting purposes. Rider Finishing PositionOfficial race classification at the time of the podium presentation will be used for settlement.

Rider Match BettingBoth quoted riders in a match, must be in place to start the warm-up lap of the specified Race, otherwise bets are void. If both riders fail to finish by going out on the same lap then bets will be void.

Otherwise the rider completing most laps will be deemed the winner for settlement purposes. Any subsequent enquiries will not apply. If the points are level then dead-heat rules will apply unless the result of the dead-heat is determined by the competition rules. First Lap MarketsBets are settled on the first completed lap of the original race start, on a 'First Past the Post' basis, with any faulty start disregarded.

Additionally, any official restarts are disregarded, unless in the original race the first lap is not completed fully. Number of Classified RidersSettlement is based on the numbers of drivers listed as finishers in the official race classification on worldsbk. The designated quarter must be completed for bets to stand, unless settlement of bets is already determined.

The designated half must be completed for half bets to stand, unless settlement of bets is already determined. A price will be offered for selected participants to make the Final Table of a specified tournament. If the named participant qualifies for the Final Table but fails to take any further part, then such bets will be deemed to have won.

mitosis lab answers

Settlement will be determined by the nationality of the player officially registered with the specified tournament. In the event of a match starting but not being completed then the player progressing to the next round, or the player awarded the victory (points) in a team competition, will be deemed the winner for settlement purposes.

If the statutory number of racks in a match are not completed, then all bets will be void. In the event of a match starting but not being completed, bets will be void unless the outcome is already determined. Unless otherwise stated all Rugby bets are settled on 80 minutes play. The term 80 minutes play includes any stoppage time. Unless otherwise stated Rugby League nines match bets are settled on the specific tournament regulation play and exclude extra-time if played.

Are void unless re-arranged and played in the same 'Rugby Week' (Monday - Sunday inclusive UK time). Regular season only unless otherwise stated. The finishing position of teams at the end of the scheduled programme of matches will determine placings with no allowance for playoffs or subsequent enquiries (and potential point deductions) by the respective leagues.

To Finish Bottom - Will be settled on the team who finish in the bottom position of the stipulated league upon the completion of the regular season. To Be Relegated - Where market is offered settlement is based upon the rules of the specified league. For these markets try includes penalty try. For all scoring play markets conversions do not count.

In the event of the half-time or full-time result ending in a Tie, then bets will be settled on Any Other option. Score 1st, Lead at Half Time and Win at Full time - Predict the outcome of all three. In the event of the combination not being offered then bets will be settled on Any Other option.Weymouth is from the 1910 Town class.

Caledon is from the C class. Fiji is from the Crown Colony class. Edinburgh is from the 1936 Town class. We're going to see a that a lot in the British DD line as well, since the vast majority of British destroyers had class names that were not the name of a ship. It could very well be that Daring at T10 will be the only ship in the DD line that's the namesake of a class.

Technically, we're also seeing that with nearly every Soviet ship. The Soviets didn't name classes after one of the ships in the class. They named them after a project number. For example Gnevny was the first ship of her class, but the Soviets never called it the Gnevny class. They called it Project 7. Tech tree could get the 1941 rebuild easily enough.

HMS Duke of York or HMS Prince of Wales. Maybe HMS Glorious before she was converted to an aircraft carrier. Campbelltown is nice and all but it would be good to have a proper RN destroyer. Maybe a French Cruiser.

Would like to see a German dd premium.

Probably going to get the Hood and Alabama(duh). Maybe a RN DD. Really going to depend on the future lines they unveil. Those could be used in such a line. We don't currently have a British heavy cruiser in game and Exeter is probably the most famous of those ships so would be a good choice to introduce them. Also 2017 is the 75th anniversary of the battles of the Java sea.


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