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Do homologous chromosomes pair in mitosis?
Homologous chromosomes do not pair in mitosis. Mitosis is the process of cell division where a cell duplicates its DNA and splits into two identical daughter cells, so the homologous chromosomes do not need to pair up like they do in meiosis.
What is the phase that is skipped or shortened in meiosis?
In meiosis, the phase that is typically skipped or shortened compared to mitosis is interphase. This is because the DNA does not need to replicate again before entering meiosis II, unlike in mitosis where each cell cycle is followed by an interphase for DNA replication.
Why do you need to know about DNA replication?
For mitosis and meiosis
Is meiosis needed for growth and tissue repair?
Yes it is. Just think of a "toe" when you think of mitosis, since that is what you need for your toe to grow.Meiosis is when a cell doubles and then splits into 4 half cells, and then turning into either one egg cell or 4 sperm cells.
Where does the process meiosis occur?
Meosis occurs in gametes. It is a type of cell replication that happens in haploid cells (cells that have half the chromosomal number of a normal cell). It is split into stages: Interphase, prophase, metaphase, anaphase, telophase and cytokinesis.
Places in the body where mitosis takes place?
Mitosis occurs in any cells in the body, however it doesn't take place in the gametes (Sperm and ova). Mitosis occurs when tissues are damaged e.g. skin = cut, mitosis is a rapid form of cell division that eventually heals to be new skin. mitosis can occur in the body anywhere, wherever new cells need to be produced to replace old or damaged cells. Meiosis however is the rapid cell division, in which, happens only in the gametes (sex cells) and no where else in the body.
Which occurs more frequently in your body mitosis or meiosis?
Mitosis occur more frequently in our body. Basically mitosis occur when we get an injury or is an asexual type of reproduction. It occurs at the time of cell division and our cells need to divide often. While meosis is form of sexual reproduction and it does not occur quite often . Also, meiosis occurs more in men than in women. Look at it this way Mitosis splits once as meosis splits twice and they're not identical
Why does crossing-over not occur in mitosis?
well from what i understand mitosis is just the replication of a cell, a cell divides into two cells and it is not being effected by any other cell so crossing over cant occur Crossing over occurs in meiosis to create diversity in the genetic material so the offspring is neither identical to father or mother. in mitosis it does not occur because the parent cell is making an identical copy of itself, so the DNA does not need to vary.
Meiosis consist of two cell divisions called?
mitosis (division of the cell nucleus) and cytokinesis (division of the cytoplasm) In eukaryotic cells: the two main stages are: -The duplication of DNA in the S phase (interphase) -Separation of sister chromatids during anaphase (mitosis)
Why do cells go through reproduction or mitosis?
Mitosis: Cells undergo mitosis to replace dead cells. If there is/are cell(s) absent in any part of the body, mitosis occurs to replace the missing cell(s). So basically, if an organism is able to keep all its cells from being harmed in any way, mitosis will never be required as no cell will need replacement. Meiosis: Cells undergo meiosis to form gametes (sex cells). These cells are able to fuse with the opposite gamete in order to fertilize and create offsprings. If meiosis did not occur, the continuity of any species that reproduced sexually would be in jeopardy. Because meiosis occurs and gametes form, individuals become fertile and are able to produce offsprings in order to continue their species.
What is it when a cell breaks into two?
When a cell breaks into two, it is called cell division. This process is essential for growth, repair, and reproduction in organisms. Cell division involves two main stages: mitosis, where the cell's nucleus divides, and cytokinesis, where the rest of the cell divides into two separate daughter cells.
Do mitosis and meiosis take place in all kind of living things?
You do need mitosis to live. If we didn't have mitosis we all would of died by now. Mitosis is the process of cell multiplication (and all the cells are identical), if we lose that ability we wouldn't be able heal cuts, for example, we would all bleed to death. Also, if our cells stopped reproducing, our internal organs would deteriorate in minutes because there is nothing to provide them with the nutrients they need to function.
