what is one major difference between mitosis and prophase i of meiosis?
99555
In mitosis, prophase, metaphase, anaphase and telophase occur once. Chromosomes condense and the centrosomes begin to form an early spindle. Meiotic prophase I is much longer that mitotic prophase. During prophase I homologous chromosomes make contacts with each other called chiasmata and “crossing over” occurs.
585237
The first and longest phase of mitosis is prophase. During prophase, chromatin condenses into chromosomes, and the nuclear envelope (the membrane surrounding the nucleus) breaks down. In animal cells, the centrioles near the nucleus begin to separate and move to opposite poles of the cell.
139016
What is a major difference between mitosis and meiosis I in a diploid organism? Sister chromatids separate in mitosis, while homologous pairs of chromosomes separate in meiosis I. A student is looking through his light microscope (~450 X) at a squashed and stained onion root tip.
1199585
Looking at the diagram, you might notice there are a lot of differences between meiosis I and meiosis II, including: In meiosis I, homologous chromosomes separate, while in meiosis II, sister chromatids separate. Meiosis II produces 4 haploid daughter cells, whereas meiosis I produces 2 diploid daughter cells.
828421
What is a major difference between mitosis and meiosis I in a diploid organism? Sister chromatids separate in mitosis, while homologous pairs of chromosomes separate in meiosis I. ... haploid, and the chromosomes are each composed of two chromatids.
532206
Meiosis I is a reductional division i.e No of chromosomes are halved in daughter cells. Mitosis is an equational division and the no of chromosomes remain same in both daughter and parent cells. ... Mitosis involves no such crossing over. Centromere splits in mitosis but not in meiosis.
547105
Mitotic prophase The main events of prophase are: the condensation of chromosomes, the movement of the centrosomes, the formation of the mitotic spindle, and the beginning of nucleoli break down.
187310
There are two major differences between mitosis and meiosis. First, meiosis involves not one, but two cell divisions. ... Germ cells are different from somatic cells in a critical way. Whereas somatic cells are diploid, meaning they have two copies of each chromosome, germ cells are haploid.
35830
Answer: A key difference between mitosis and meiosis is that sister chromatids remain joined during anaphase I in meiosis, whereas in anaphase of mitosis they separate. ... In what stage of meiosis do the centromeres separate, and the two chromatids of each chromosome move to opposite poles on the spindle?
1009551
Answer Expert Verified Similarities:they are both processes of cell division by which cells reproduce. They share several steps of the process(prophase, metaphase, anaphase e telophase, cytokinesis) but meiosis has another division also with those same steps.
283724
In prophase the chromosomes are composed of two chromatids. In telophase, the chromosomes have are single stranded and there are two identical daughter cells. The cells are about half the size of the prophase cell. "In Prophase the actual nuclear membrene is gone; Within telophase the nuclear membrane lso are-forms. "
819463
Meiosis 1 separates the pair of homologous chromosomes and reduces the diploid cell to haploid. It is divided into several stages that include, prophase, metaphase, anaphase and telophase.
899033
Meiosis is the production of four genetically diverse haploid daughter cells from one diploid parent cell. ... Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not. This occurs in meiosis I in a long and complicated prophase I, split into five sub-phases.
821885
Prophase is the firs Chromatin begins to condense and is visible in the form of chromosomes. Spindle fibres begin to form as well as centrioles. Prophase is important because this is when chromatin becomes chromosomes so the right number of chromosomes can be distributed equally to each daughter cell produced.
422969
The main difference between prophase and metaphase is that chromosomes condense during prophase whereas homologous chromosome pairs align in the equatorial plate of the cell during metaphase.
772588
In prophase, the first step in mitosis, the nuclear envelope breaks down and chromosomes condense and become visible. ... In metaphase, the mitotic spindle is fully developed, centrosomes are at opposite poles of the cell, and chromosomes are lined up at the metaphase plate.
5028
Both mitosis and meiosis are processes of cell division. They use the same steps for cell division, including prophase, metaphase, anaphase and telophase. ... The resulting offspring is genetically different in the case of meiosis, while the offspring is identical in the case of mitosis.