If mitosis makes somatic cells, what does meiosis make? Does mitosis produce somatic cells or gametes? What is diploid? How many chromosomes are in a human cell? How many pairs of homologous chromosomes would be present in a cell undergoing metaphase II?
In addition, some microscopy imaging methods can generate only static images of cells, which makes it impossible to detect mitosis events with cell-tracking methods. In this section, we introduce some methods that achieve independent mitosis detection without the extra complexity of a cell-tracking ...
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How many chromosomes are there in the metaphase of mitosis? If mitosis makes somatic cells, what does meiosis make? How are meiosis 1 and meiosis 2 different? Explain the main difference between mitosis and meiosis. How do homologous chromosomes know to pair up?
➢DuringG1,cellsundergothemajorportionoftheirgrowth.➢DuringtheSphase,eachchromosomereplicatestoproducetwosisterchromatids,whichremainattachedtoeachotheratthecentromere.➢AfterthechromosomeshavereplicatedinSphase,theyremainfullyextendedanduncoiled.Thismakestheminvisibleunderthelightmicroscope.➢InG2phase,theybegin...
“crossing over”) is the process that makes prophase I so special. It’s essentially a scrambling-around of genetic material that introduces some variation into the eventual daughter cells. Recombination is one of the hallmarks of sexual reproduction, giving evolution a hand through changing things...
The altered ratio between oxidant and antioxidant molecules in cells makes the neuronal cells more susceptible to oxidative stress in the higher metabolic state (Muller, 1997). Mutation in several mitochondrial genes including PINK1, Parkin, and DJ-1 initiates mitochondrial-dependent oxidative stress ...
types of cells in the body has a different lifespan. For example, red blood cells live about a month and white blood cells live more than a year, while skin cells live for only a few weeks. This makes it necessary for cells to replicate, or create replacement cells, on a regular ...
Mitosis and meiosis bothinvolve cells dividing to make new cells. This makes them both vital processes for the existence of living things that reproduce sexually. Meiosis makes the cells needed for sexual reproduction to occur, and mitosis replicates non-sex cells needed for growth and development....
In all three cases, but sharpest in Scilla and Allium, it is the differentiation of two types of mother cell in the same anther which makes it possible to demonstrate this multiple correlation. The primary characteristic of the breakage-asynapsis syndrome is a delay in the onset of prophase ...