cell division by neha

What is the significance of the G2 checkpoint in the cell cycle?

• Checks for DNA damage

• Ensures proper chromosome alignment

• Monitors completion of DNA replication

• Initiates cell division

Which of the following is a characteristic of both mitosis and meiosis?

• Formation of haploid cells

• One round of cell division

• Production of identical daughter cells

• Occurs in somatic cells

The process of cytokinesis usually begins during which stage of mitosis?

• prophase

• metaphse

• anaphase

• telophase

Which of the following is a characteristic of meiosis but not mitosis?

• Two daughter cells

• Genetic diversity

• Diploid cells

• Somatic cells

What is the correct sequence of phases in the eukaryotic cell cycle?

• G1 phase, S phase, G2 phase, M phase

• G2 phase, M phase, G1 phase, S phase

• S phase, M phase, G1 phase, G2 phase

• M phase, G1 phase, S phase, G2 phase

In which phase of the cell cycle do homologous chromosomes exchange genetic material during meiosis?

• leptotene

• pachytene

• zygotene

• diplotene

During which stage of mitosis do chromosomes align at the cell's equator before separating?

• metaphase

• telophase

• zygotene

• prophase

Spindle fibers attach on to

• kinetochore of the chromosome

• centromere of the chromosome

• telomere of the chromosome

• kinetosome of the chromosome

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?

• Chromosomes will not condense

• Chromosomes will not segregate

• Recombination of chromosome arms will occur

• Chromosomes will be fragmented

Arrange the following events of meiosis in the correct sequence

(i) crossing over

(ii) synapsis

(iii) terminalisation of chiasmata

(iv) disappearance of nucleolus

• (ii), (i), (iii), (iv)

• (ii), (i), (iv), (iii)

• (ii), (iii), (iv), (i)

• (i), (ii), (iii), (iv)