[{"id":268850,"question":"Some student of SSC observed a thin cross section ffrom root tip of onion plant under the microscope. They found divising cells at different stages of their life cycle. One of the students found a cell at late prophase and counted 28 chromosomes in it. The number of chromosomes in daughter cells should be.","choices":[{"text":"14","value":"A"},{"text":"28","value":"B"},{"text":"56","value":"C"},{"text":"09","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268849,"question":"During celll division spindle fibres attach a chromosome at.","choices":[{"text":"Telomere","value":"A"},{"text":"Centromere","value":"B"},{"text":"Upper arm of chromosomes","value":"C"},{"text":"Lower arm of chromosome","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268848,"question":"Substance and energy required for replication for DNA is accumulated in cell during.","choices":[{"text":"G1","value":"A"},{"text":"G2","value":"B"},{"text":"S-Phase","value":"C"},{"text":"M-Phase","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268847,"question":"Why is meiosis II necessary after meiosis I?","choices":[{"text":"To replicate chromosomes","value":"A"},{"text":"To separate sister chromatids","value":"B"},{"text":"To ensure genetic recombination","value":"C"},{"text":"To reduce chromosomes number","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268846,"question":"Which event is unique to meiosis but not mitosis.","choices":[{"text":"DNA Replication","value":"A"},{"text":"Crossing over","value":"B"},{"text":"Chromosomes alignment","value":"C"},{"text":"Nuclear division","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268845,"question":"Which one is the feature of mitosis but not of meiosis II?","choices":[{"text":"Crossing over","value":"A"},{"text":"Separation of sister chromatids","value":"B"},{"text":"Daughter cells with same number of chromosomes","value":"C"},{"text":"Sepearation of homologous chromosomes","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":268844,"question":"An organism has 4 pairs of chromosoems . Afger meiosis-I , how many chromosomes and chromatids will be present in each daughter cell.","choices":[{"text":"8 Chromosomes and 16 chromatids","value":"A"},{"text":"4 chromosomes and 8 chromatids","value":"B"},{"text":"4 chromosomes and 4 chromatids","value":"C"},{"text":"8 chromosomes and 8 chromatids","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268843,"question":"Centrosomes make mitotic spindle in.","choices":[{"text":"Plant cells","value":"A"},{"text":"Animal Cells","value":"B"},{"text":"Prokaryotic cells","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268842,"question":"How does the centrosome contribute to mitosis.","choices":[{"text":"Initiates DNA replication","value":"A"},{"text":"Make mitotic spindle","value":"B"},{"text":"Forms the nuclear envelope","value":"C"},{"text":"Duplicates organelles","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268841,"question":"If you observe a cell in which nuclear memberane is reforming around two sets of chromosomes, what stage of cell cycle is this","choices":[{"text":"Anaphase","value":"A"},{"text":"Telephase","value":"B"},{"text":"Metaphase","value":"C"},{"text":"Prophase","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":268840,"question":"At which stage of mitosis chromosomes line up in the centre.","choices":[{"text":"Prophase","value":"A"},{"text":"Anaphase","value":"B"},{"text":"Metaphase","value":"C"},{"text":"Telophase","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":268839,"question":"In which phase of cell cycle, the chromosomes duplicate.","choices":[{"text":"S Phase","value":"A"},{"text":"G1 Phase","value":"B"},{"text":"Mitosis","value":"C"},{"text":"G2 Phase","value":"D"},{"value":"E"}],"correctAnswer":1}]