anyone who knows the number of chromosome that plants have?
954367
hi,\n\nnot all the plants are alike. different plants will have different number of chromosomes.\n\nEg: Rice (Oryza sativa) will have 12 chromosomes (n=12, 2n=24)\n\nCultivated Cotton (2n=52)\n\n wheat (Triticum, 2n=42) \n\n\nArabidopsis 2n = 10 \nRye 2n = 14 \nMaize 2n = 20 \nCultivated tobacco 2n = 48 \nFern 2n =1200\n\n B. oleracea (broccoli and cauliflower) has a haploid chromosome number of n=9 \n\n the haploid number for B. campesteris (turnip) is n=10. \n B. napus has a haploid number of n=19.
262696
Human beings have 23 pairs of chromosomes --> 22 identical pairs plus one pair of sex chromosomes (XY in males and XX in females). When you line the 22 pairs in the order of decreasing length, you name them chromosome 1,2,3,..... 22.\n\nThe 14th pair in the order is chromosome 14.
84693
So in short, sister chromatid are duplicates of the homologous pairs. I hope this helped If so 333 (I) would like the 10 points. :)\n\nThe normal chromosome number in human cells is 46. This number is called a diploid or a 2n number of chromosomes. The chromosomes consist of 23 pairs. Each pair of chromosomes is called a homologous pair. One chromosome of each homologous pair is from the male parent, and the other is from the female parent. The chromosomes of each homologous pair look alike, and they contain genes for the same traits. \n\nSister chromatids are two identical copies of a single chromosome that are connected by a centromere. \n\nFirst, consider mitosis (typical cell division) in a normal diploid cell, with two copies of each chromosome. The chromosomes are duplicated during DNA replication, and the duplicates, called sister chromatids, remain attached to one another until chromosome segregation. Each daughter cell then receives one of the sisters from each homologue pair. Importantly, this means that the daughter cells are exact copies of the mother cell, with two copies of each chromosome, so they can go through the same process again. Thus, we call this process the cell cycle.
441484
There's a fern with thousands of chromosomes.\n\nAccording to wiki, Aulacantha (protozoa) is the highest with ~1600  \n\nGod, I love wikipedia.
113120
23(twenty-three) pairs of chromosomes in the human body.Unless of course there is a mutation..
245403
well, let me put it this way. meiosis creates 4 egg or sperm cells, by dividing into 4 sections the chromosomes that each person received from their parents. When you think that there are 46 total chromosomes, 23 from each parent, think how many combinations of traits are possible. Then add the possibility of genes in the chromosomes changing places. Then think that you have another parent to consider, so you need to square that number. There are a total of 36 trillion possible combinations of chromosomes, according to a class i'm taking now, for each new birth. This is only possible because of meiosis and sexual reproduction. It reshuffles the genetic cards, to avoid inbreeding and keep the gene pool healthy.
585090
gametes in humans are produced through meiosis. This process produces four daughter cells, each with only half of the DNA of any other cell. Normal, or autosomal cells, have 46 chromosomes, 2 pairs of each type. Sex cells, gametes, have only one of each type chromosomes, 23 total.
880811
I don't have any picutres for you to look at, but I can give you an explanation.\nanimal cells are going to be more rounded, and plant cells are more rectangular.\nRemember: PMAT, these are the phases of mitosis\nProphase-the chromatin begins to condense into chromosomes and the nucleus begins to break down.\nMetaphase-The Chromosomes line up or Meet or "MET" at the cellular equator\nAnaphase- The chromosomes are pulled apart at the centromere\nTelophase- The chromatin decondenses and the neclues reforms\nAlso, the diff. between animal and plant cells....\nAnimal cells have a cleavage furrowl like a figure-8.\nPlant cells build a cell plate in between the separated chromosomes\nMitosis results in two daughter chromosomes.
1018240
none\n\n\nyou start with one pair of homologous chromosomes in prophase I of meiosis I.  at metaphase I, these homologues line up across the metaphase plate, and at anaphase, they seperate so that one homologue goes to one pole, and the other homologue goes to the other pole.  after cytokinesis at the end of telophase I, you have one homologue in each cell...that homologue then goes through meiosis II, and at metaphase II, that homologue lines up at the metaphase plate with each sister chromatid facing each pole, and the chromosome is "pulled apart".  Anaphase II pulls the sister chromatids to each pole, and cytokinesis splits the one cell into two....two cells, each containing one sister chromatid of a homologous pair. (although in some text books this is refered to as a single homologue)
564944
Absolutely nothing to do with chromosome count.\n\n>>>> How closely related are humans to apes and \n>>>> other animals?\n\nIt varies depending on the animal obviously. Around 95% relatedness to chimpanzees. Around 92% for gorillas, as little as 80% for orang-utans. It gets progressively less the  more distant the other species are in evolutionary terms.\n\n>>>>How do scientists measure that?\n\nThere are two basic ways. One is to measure the degree of similarity of the genes, that is the functional parts of the DNA. That generally produces figures quite a bit higher than the ones I gave above. The other is to sequence the entire genome, or large stretches of it and compare it that way. Because those long stretches contain non-coding material they are generally more dissimilar between species.\n\n>>>>Are humans related to plants at all?\n\n\nYep. All living things on this planet are related to some degree. IIRC humans share around 15% of their genes with bananas.
987220
Plants are a major group of living things including familiar organisms such as trees, flowers, herbs, and ferns. About 350,000 species of plants have been estimated to exist. As of 2004, some 287,655 species had been identified, of which 258,650 are flowering.
974951
There are 800 species of ficus, it would be helpful to know which one!...;
1062561
23 pairs of chromosomes in the human body
811419
There seems to be no scientific evidence that proves complexity of organisms with respect to number of chromosomes. However, the word "complexity" is some what subjective. Though you may think that the more number of chromosomes, the more alleles are coded for and the higher the complexity, it has hard to tell differences. Ex. Humans can differentiate from each other very easly while we cant tell a zebra from another zebra but a baby remebers his/her mother's stripe pattern at birth. This in our prospective they may not seem as "complex" as us humans but in their eyes they perceive it differently.\n\nTo answer your question in the way that I think you are asking:\nIf your looking for a specific example of how a less "complex" oraganism's chromosme number compare to a more "complex" organism, a human has 46 chromosomes but a crayfish has 200.\n\nOnce again, the word "complexity" is ambiguous and subjective but understanding your general aim, there is no proven correlation between number of chromosomes and "complexity" of organism
1181775
http://plants.usda.gov/index.html
813478
There is no magic number.\n\nIt is not a matter of genetic distance as much as it is number of chromosomes, and other pre- and post-zygotic barriers.\n\nGiven that we are all very genetically close (by the numbers at least) it will be interesting to see what the future brings in the way of hybridization of animals (plants have already been messed with A TON).
246213
Those organells have their own genome, and it replication is not involved in the chromosome crossing over and other variation mechanisms on cell splitting. During the cell splitting they just stay a few on each side and thats how each new cell has chloroplasts