cell cycle and cell cycle
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cell cycle and cell cycle - Marcador
cell cycle and cell cycle - Detalles
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Preguntas:
77 preguntas
| 🇬🇧 | 🇬🇧 |
| A somatic cell that has just completed the S phase of its cells cycle, as compared to gamete of the same species, has | Twice the number of chromosomes and four times the amount of DNA |
| A somatic cell that has just completed the S phase of its cells cycle, as compared to gamete of the same species, has | Twice the number of chromosomes and four times the amount of DNA |
| When synapsis is complete all along the chromosome, the cell is said to have entered a stage called | Pachytene |
| Which of the following precedes reformation of the nuclear envelope during M-phase of the cell cycle | Decondensation from chromosomes an reassembly of the nuclear lamina |
| During which stages (or prophase 1 substages ) of meiosis do you expect to find the bivalents and DNA replication respectively | Zygotene and S phase ( of interphase prior to prophase 1) |
| DNA replication in bacteria occurs | Prior to fission |
| A somatic cell that has just completed the S phase of its cells cycle, as compared to gamete of the same species, has | Twice the number of chromosomes and four times the amount of DNA |
| Given below is a schematic break upof the phases/ stages of cell cycle, label each part | A-karyokinesis, B-anaphase, C-cytokinesis, D- synthesis phase |
| A bacterium divides every 35 minutes. if a culture containing 10^5 cells per ml is grown for 175 minutes, what will be the cell concentration per ml after 175 minutes? | 175/35=5divisions number of cells formed (2)^5*10^5=32*10^5 |
| Anaphase promoting complex is a protien degradation machinery necessary for proper mitosis of animal cell, which of the following is expected to occur? | Chromosomes will not segregate |
| A stage in cell division is shown in the figure. select the answer which gives correct identification of the stage with its characteristics | Telophase-nuclear envelop reforms, golgi complex reforms |
| Which one of the following precedes reformation of the nuclear envelop during M-phase of the cell cycle | Decondensation from chromosomes, and reassembly of the nuclear lamina |
| Number of chromatids at metaphase is | Two each in mitosis and meiosis |
| Genetic map is one that | Establishes sites of the genes on a chromosome |
| Lampbrush chromosomes occur during | Diplotene of meiosis |
| Meiosis 2 performs | Seperation of chromatids |
| In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to | Segregation, independent assortment and crossing over |
| Synapsis occurs in which stage | Zygotene |
| Interkinesis is a stage between | Two meiotic divisions |
| Interkinesis is a stage between | Two meiotic divisions |
| In which stage of mitosis, golgi complexes ER, nucleolus and nuclear envelope begins to disappear | Late prophase |
| Chaismata appear in which stage | Diplotene |
| Dyad of cell related with | Telophase-1 |
| Precursor of cell wall is | Cell plate |
| Which type of division leads to multinucleated condition | Free nuclear divisions |
| Which chromosome is V-shaped | Metacentric chromosome |
| In which order cytokinesis occurs in plants | Centrifugal |
| Division of nucleus is indirect in | Mitosis and meiosis |
| Which division is characteristic of cartilage cells, meganucleus of paramaecium and foetal membrane | Amitosis |
| Meiosis can be observed in | Spore mother cells |
| In which mitosis does not occur | Bacteria |
| The cell would normally proceed to mitosis without interruption | When it has entered S-phase |
| What is unique to mitosis and not a part of meiosis | Homologous chromosomes behave independently |
| The checkpoint in cell cycle play important role in | Assess DNA damage |
| Beads on string string like structures of A and B, which further condense to form chomosomes in C stage of cell division | A-chromonema, B-chromatin C-metaphase |
| When synapsis is complete all along the chromosome, the cell is said to have entered a stage called | Pachytene |
| The site of meiosis in higher plants is | Young anther |
| Meiosis in angiosperms occurs in | Spore mother cell |
| In mitosis the spindle is | Bipolar |
| In animals, cytokinesis is | Centripetal |
| Spindle is absent in | Procaryotes |
| What reorganises the nucleolus in telophase | Sec. constriction (NOR) |
| Sporic meiosis occurs in | All plants except most of thallophta |
| Term meiosis was coined by | Farmer and moore |
| In animals mitosis is mainly | Amphiastral |
| In plants meiosis can be observed in | Sporangia |
| The pragmoplast is organised in | At the end of anaphase |