Cell Cycle and Cell Division PYQ — Page 2

With respect to metaphase, which of the following statements is incorrect?

The appearance of recombination nodules on homologous chromosomes during meiosis characterizes:

Which one of the following never occurs during mitotic cell division?

Bivalent or Tetrad formation is a characteristic feature observed during :

The centriole undergoes duplication during:

Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature?

The fruit fly has $8$ chromosomes $(2n)$ in each cell. During the interphase of mitosis if the number of chromosomes at ${G}_{1}$ phase is $8.$ What would be the number of chromosomes after the S phase?

Which of the following stages of meiosis involves division of centromere?

Match Column - I with Column - II. <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>$S$ phase</td><td>(i)</td><td>Proteins are synthesized</td></tr><tr><td>(b)</td><td>${G}_{2}$ phase</td><td>(ii)</td><td>Inactive phase</td></tr><tr><td>(c)</td><td>Quiescent stage</td><td>(iii)</td><td>Interval between mitosis and initiation of DNA replication</td></tr><tr><td>(d)</td><td>${G}_{1}$ phase</td><td>(iv)</td><td>DNA replication</td></tr></tbody></table>Choose the correct answer from options given below.

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

During meiosis $I,$ in which stage synapsis takes place?

In a mitotic cycle, the correct sequence of phases is:

Dissolution of the synaptonemal complex occurs during

Identify the correct statement with regard to G$_{1}$ phase (Gap 1) of interphase.

Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:

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

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>

The correct sequence of phases of cell cycle is:

Crossing over takes place between which chromatids and in which stage of the cell cycle?

After meiosis-I, the resultant daughter cells have

Cells in G$_{0}$ phase:

The stage during which separation of the paired homologous chromosomes begins is

Anaphase promoting complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur?

Which of the following options gives the correct sequence of events during mitosis?