yes sir so ns guess this particularly is i can not qualify to come up however I would certainly love part clarification. My understanding was the the cell to be haploid after telophase I, because it only has actually DNA from one parent, simply that the dna content was doubled. A TPR evaluation sheet ns have, however, states that the cell is haploid after telophase II. Thoughts?
TPR is wrong then. A diploid cabinet becomes haploid throughout Meiosis I and also is perfect after Telephase I. You start off through a duplicated copy of every the chromosomes (2 sister chromatids); all her mom"s chroms space dulicated & all her dad"s chroms are replicated These homologous chromosomes (from mother & dad, every duplicated) pair up during prophase I forming tetrads. The bag of homologs heat up top top the metaphase plate during metaphase I. Homologs space pulled personally by the meotic spindles during anaphase I. Telephase I follows shortly after v the improvement of nucleolus and also the nucelus. In Meosis II, the recombinant sister chromatids for each chromosome in the haploid cell space then pulled apart creating 4 unreplicated haploid cells.
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No probs. Ns encountered quite a couple of errors by TPR while ns was studying. It to be annoying but in a means it coagulation my knowledge of specific things since I"d always try to make sense of their incorrect answers.
TPR is dorn then. A diploid cabinet becomes haploid throughout Meiosis I and is perfect after Telephase I. You begin off with a replicated copy of every the chromosomes (2 sister chromatids); all her mom"s chroms space dulicated & all your dad"s chroms are replicated These homologous chromosomes (from mother & dad, all duplicated) pair up during prophase I creating tetrads. The pairs of homologs heat up on the metaphase plate throughout metaphase I. Homologs room pulled apart by the meotic spindles throughout anaphase I. Telephase I adheres to shortly after with the reformation of nucleolus and the nucelus. In Meosis II, the recombinant sister chromatids because that each chromosome in the haploid cell space then pulled apart forming 4 unreplicated haploid cells.
That"s embarrassing. Thanks for the mediate
I hate to to speak it, however I think your book is right. Appropriate after replication and also prior to meiosis, the chromosome number is technically 4n. Not till after perfect of meiosis II is the complete chromosome number "n." each sister chromatid is counted as one chromosome - that doesn"t matter if all chromatids in a cell adhering to meiosis ns are derived from a single parent. Each cell in ~ this allude still has actually a full enhance of 46 chromatids/chromosomes.
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I dislike to say it, but I think your publication is right. Ideal after replication and also prior come meiosis, the chromosome number is technically 4n. Not till after perfect of meiosis II is the finish chromosome number "n." every sister chromatid is counted together one chromosome - that doesn"t issue if every chromatids in a cell following meiosis ns are derived from a solitary parent. Every cell at this point still has actually a full enhance of 46 chromatids/chromosomes.
ns love come say it, and I think you are wrong. What you have after meiosis i is 23 chromosomes and also 46 sister chromatids. Each sister chromatid would not be counted as one chromosome. If that were true, then do somatic cells have actually 92 chromosomes right prior to mitosis?
i love come say it, and also I believe you room wrong. What you have actually after meiosis ns is 23 chromosomes and also 46 sisters chromatids. Every sister chromatid would not it is in counted as one chromosome. If the were true, then do somatic cells have 92 chromosomes right prior to mitosis?
The satisfied is every mine. Strict speaking, no, most people would more than likely not define a chromatid as identical to a chromosome. The said, a human somatic cell undergoing mitosis is taken into consideration quadraploid ~ replication and also up to/including metaphase. This is the mechanism whereby cells the undergo DNA replication, but are arrested before division, give rise to polyploid cells. If both daughter cells space diploid, and all the genetic material consisted of in the daughter cell was consisted of in the parent, how could the parent likewise be diploid? Obviously, it was diploid prior to synthesis, yet once you duplicate every gene you twin the chromosome number. in ~ some point this is simply a video game of semantics. But, if you think about it, why would certainly meiosis II need to happen at every if a complete haploid gamete were produced after meiosis I? EDIT: If anyone can uncover a conclusive answer come this (preferably through reference) it would be extremely appreciated. I tried simply researching this question yet I discovered equal numbers of responses favoring each camp. My views and also explanation room based completely upon what I have been taught. Ns am also interested in how the particular review inquiry was phrased: If it said "when walk a cell very first become haploid throughout mitosis?" climate the inquiry is admittedly ambiguous. However, if it merely asks as soon as the cell is haploid, friend should recognize that it is 100% positive haploid at the finish of meiosis II and eliminate all various other answers.