Botany Cell Cycle and Cell Division questions from NEET UG 2020.
Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:
Dissolution of the synaptonemal complex occurs during
During meiosis $I,$ in which stage synapsis takes place?
Identify the correct statement with regard to G$_{1}$ phase (Gap 1) of interphase.
In a mitotic cycle, the correct sequence of phases is:
Match the following events that occur in their respective phases of the cell cycle and select the correct option: <table class="pyq-table"><tbody><tr><td colspan="2" rowspan="1">Column-I</td><td colspan="2" rowspan="1">Column-II</td></tr><tr><td>(a)</td><td>${G}_{1}$ phase</td><td>(i)</td><td>Cell grows and organelle duplication</td></tr><tr><td>(b)</td><td>$S$ phase</td><td>(ii)</td><td>$\mathrm{DNA}$ replication and chromosome duplication</td></tr><tr><td>(c)</td><td>${G}_{2}$ phase</td><td>(iii)</td><td>Cytoplasmic growth</td></tr><tr><td>(d)</td><td>Metaphase in $M-$phase</td><td>(iv)</td><td>Alignment of chromosomes</td></tr></tbody></table>
Match the following with respect to meiosis <table class="pyq-table"><tbody><tr><td>(a)</td><td>Zygotene</td><td>(i)</td><td>Terminalization</td></tr><tr><td>(b)</td><td>Pachytene</td><td>(ii)</td><td>Chiasmata</td></tr><tr><td>(c)</td><td>Diplotene</td><td>(iii)</td><td>Crossing over</td></tr><tr><td>(d)</td><td>Diakinesis</td><td>(iv)</td><td>Synapsis</td></tr></tbody></table>Select the correct option from the following
Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G$_{0}$). This process occurs at the end of