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What must happen before both mitosis and meiosis begin?
believe it or not, mitosis always takes place in the cell; it never stops, even for a fraction of a second! However, there has been a stage called Interphase, which was once incorrectly termed as the Resting Phase of a cell. Scientists have proved that this is not so, for in this stage, the cell engages in different activities to prepare for the next cell division, such as: replication of the DNA, replication of centrioles, formation of new cellular organelles, chromosomes appear as long chromatic threads swollen at intervals into visible chromatic granules, and lastly, the cell synthesizes and stores enough energy, ready for the division! Have I answered your question? -B.C.O :-)
Why cant you see the chromosomes during interphase?
In interphase, the DNA has just replicated and exists as loosely coiled chromatins. They have not yet condensed enough to be the form of a chromosome. In the next stage, prophase, the DNA will shorten and condense into the easily recognizable chromosome structure.
In mitosis how many times is the DNA copied?
In both mitosis and meiosis DNA replication only occurs once, during Interphase and Interphase 1, for mitosis and meiosis, respectively.
What mechanism allows both bacteria and viruses to survive harsh environments e.g in the gut?
I'm guess is that... the bacteria and viruses forma a thick coat, called an endospore inside them that allows them to survive harsh enviorments while making them dormant (resting cells) at the same time. once the envorment becomes suitable again, the endospore deteriorates and thus the bacteria or virus once again becomes prominant ( non- resting, it can move around now). i think soooooooooo
Once the oocyte has been release from the follicle?
it is in the first stage
What is the period of cell life when cell doesn't divide?
Interphase is:1. "The metabolic stage in the cell cycle during which the cell is not dividing."2. "The interval between two successive cell divisions, during which the chromosomes are not individually distinguishable. The long stage in the cell cycle between successive meioses."ok, im Alice. go on Ask.com, it is WAY better. or even Gogogle. Answer.com can be wrong. once i go a F on an assignment that i got my answers from here. good luck, goodbye, best wishesAlice
What is the g0 of interphase?
Where a cell goes into a state of neither dividing nor preparing to divide, some cells stay in G0 stage once reaching maturity.
Why not easy to observe individual chromosomes during the interphase?
coz in interphase, the chromatin threads are not yet condensed into what is called as chromosomes. they are thread like structures, and make a network called chromatin network. chromatin threads only begin to condense into thicker structures called chromosomes once the process of cell division actually begins
Why do cells spend the most time in interphase?
Not all cells divide at the same rate, but that difference is only in the length of the interphase which can vary by up to years for some tissues. It is just that prophase, metaphase, anaphase and telophase are much less variable as the process has to complete (not stable stuck in the middle of dividing, see Larson).
What must happen before both mitosis and meiosis begin?
believe it or not, mitosis always takes place in the cell; it never stops, even for a fraction of a second! However, there has been a stage called Interphase, which was once incorrectly termed as the Resting Phase of a cell. Scientists have proved that this is not so, for in this stage, the cell engages in different activities to prepare for the next cell division, such as: replication of the DNA, replication of centrioles, formation of new cellular organelles, chromosomes appear as long chromatic threads swollen at intervals into visible chromatic granules, and lastly, the cell synthesizes and stores enough energy, ready for the division! Have I answered your question? -B.C.O :-)
How many times does DNA replicate in meiosis?
1 time only which is done during the only interphase in meiosis.
The time spent in G1 S and G2 periods of the cell cycle is called interphase?
Yes it is true that the time spent in G1 plus S plus G2 periods of cell cycle is called interphase. Once a cell crosses the halfway point of G1, it usually completes the rest of the cell cycle.
Does meiosis go through interphase more than once?
No, interphase only occurs prior to the first prophase. The meiotic cells proceed from telophase I directly to prophase II
Why cant you see the chromosomes during interphase?
In interphase, the DNA has just replicated and exists as loosely coiled chromatins. They have not yet condensed enough to be the form of a chromosome. In the next stage, prophase, the DNA will shorten and condense into the easily recognizable chromosome structure.
When do chromosomes replicate during meiosis?
Chromosomes replicate in the Interphase part of Meiosis and throughout the whole process of Meiosis they only replicate once.
What phase of the cells cycle is typically the longest phase?
Interphase is the longest phase of the cell cycle because it's the phase between divisions. It involves G1, S, G2, and G0 phase where the cell goes through growth after its division and then preperation to go through mitosis again.
What duplicated chromosomes are pulled apart during the fourth stage of mitosis called?
Before they are pulled apart they are called sister chromatids. Once they are pulled apart they are called chromosomes.
