Kinetochores are large protein complexes that bind the centromeres of chromosomes to the microtubules of mitotic spindle fibres, during metaphase in the cell cycle.

Correct Option: C

Kinetochores are large protein complexes that bind the centromeres of chromosomes to the microtubules of mitotic spindle fibres, during metaphase in the cell cycle.

During mitosis, endoplasmic reticulum and nucleus begin to disappear at early prophase. Also, nucleus and cell become spherical and DNA molecules condense to form shortened chromosome.

Correct Option: D

During mitosis, endoplasmic reticulum and nucleus begin to disappear at early prophase. Also, nucleus and cell become spherical and DNA molecules condense to form shortened chromosome.

The figure A represents late anaphase while figure B represents prophase stage of mitosis.

Correct Option: C

The figure A represents late anaphase while figure B represents prophase stage of mitosis.

Synapsis is the pairing of two homologous chromosomes that occurs during prophase I (zygotene stage) of meiosis. The two chromosome move together and pairly corresponding along their lengths as they lie side to side. The resulting structure is called a bivalent.

Correct Option: C

Synapsis is the pairing of two homologous chromosomes that occurs during prophase I (zygotene stage) of meiosis. The two chromosome move together and pairly corresponding along their lengths as they lie side to side. The resulting structure is called a bivalent.

At the beginning of M phase or mitotic phase, the nuclear membrane and nucleolus disappear. The decondensation of chromosomes occur. But when nuclear envelop start forming then nuclear lamina assemble and chromosomes start condensing.

Correct Option: B

At the beginning of M phase or mitotic phase, the nuclear membrane and nucleolus disappear. The decondensation of chromosomes occur. But when nuclear envelop start forming then nuclear lamina assemble and chromosomes start condensing.