samiam99 Posted May 27, 2011 Posted May 27, 2011 State how many chromosomes and chromatid are found...is this correct? spermatogenesis --------------------------------------… Primordial germ cells- 2n =46 chromosomes and 46 chromatid..because chromosomes have not yet entered s phase? spermatogonial stem cells- still 46 chromatid and 46 chromosomes primary spermatocyte- s phase has occured so 46 chromosome and 92 chromatid? --------------------------------------… oogenesis primordial germ cell= 46 chromosomes 46 chromatid oogonia- s phase has not occured?- 46 chromosomes and 46 chromatid primary oocyte- s phase has occured so 46 chromatid and 92 chromatid? ootid and the polar bodies are each haploid with 23 chromosome and 23 chromatid? --------------------------------------… Lastly angiosperm - sporophyte...assuming they are 2N=46 sporangia is the chambers where gametophytes are produced one question said number of chromosomes in the sporangium cell found on anthers - so they are referring to microsporocytes?- 46 chromosomes 92 chromatid? magasporocyte and microsporocytes=diploid 46 and 92 chromatid endosperm = 3N triploid so 69 chromosome 69 chromatid? antipodal and tube cell= 23 chromosomes and 23 chromatid flower petal and parencyma cell of the leaf- I'm assuming these are like nervous system or brain cells and are arrested in G phase so 46 chromosome and 46 chromatid?
jimmydasaint Posted May 29, 2011 Posted May 29, 2011 This may help you. Just follow the chromosomes and chromatids from the mother cell: Cells Alive
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