Prepare for NEET Biology Cell Cycle and Cell Division with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert help for mitosis and meiosis understanding.
During which phase of the cell cycle are centrioles duplicated to ensure each daughter cell receives a pair?
G1 phase
S phase
G2 phase
M phase
If a cell fails to duplicate its centrioles, which process would be most directly affected?
DNA replication
Formation of the mitotic spindle
Cytokinesis
Cell growth
Which statement about centriole duplication is TRUE?
It occurs during G1 phase.
It occurs during the S phase of the cell cycle.
It occurs during prophase.
It occurs after mitosis is complete.
The duplication of centrioles is coordinated with:
Cytokinesis
Spindle formation
DNA replication
Chromosome condensation
A fruit fly cell has 8 chromosomes (2n). If the number of chromosomes at phase is 8, what would be the number of chromosomes after phase?
4
8
16
32
A diploid onion cell (2n=16) undergoes mitosis. What is the number of chromosomes in each daughter cell after the phase of interphase?
8
4
16
32
A human somatic cell contains 46 chromosomes (2n). During the phase of interphase, what happens to the number of chromosomes?
Remains the same
Doubles
Halves
Quadruples
If a cell has 12 chromosomes at the beginning of interphase, how many chromatids will it have at the end of the phase?
6
12
24
48
During which stage of the cell cycle does the number of chromatids in a cell double?
phase
phase
phase
phase
