In cell cycle, during interphase:

Important Questions on Cell Cycle and Cell Division

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Identify the correct statement with regard to G₁ phase (Gap 1) of interphase.

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

During which phase(s) of cell cycle, amount of DNA in a cell remains at 4 C level if the initial amount is denoted as 2C?

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Which phase occupies the maximum part of cell cycle?

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Yeast cell can progress through the cell cycle in about _____.

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

A single bacterium is actively growing in a medium that supports its growth to a number of 100 million. Assuming the division time of the bacterium as 3 hours and the life span of non-dividing bacteria as 5 hours, which ONE of the following represents the maximum number of bacteria that would be present at the end of 15 hour?

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G₀). This process occurs at the end of

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

In the 'S' phase of the cell cycle:

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

A bacterial culture was started with an inoculum of $10$ cells. What will be the number of cells at the end of $10$ cycles of division, assuming that every progeny cell undergoes division in each cycle?

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Following the cell cycle scheme given below, what is the probability that a cell would be in M-phase at any given time?

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

The correct sequence of phases of cell cycle is:

MEDIUM

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Arrange the following events of mitotic cell cycle in series
a) Reformation of nucleolus, Golgi complex and $\mathrm{ER}$
b) Amount of $\mathrm{DNA}$ per cell doubles
c) Disappearance of Golgi complex and $\mathrm{ER}$
d) Condensation of chromatin into chromosome
e) Distribution of mitochondria and plastids to daughter cells
f) Separation of chromatids at centromere

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

During cell growth, DNA synthesis takes place in

MEDIUM

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Gene ${\mathrm{P}}^{53}$ guards integrity of $\mathrm{DNA}$ and hence called 'Guardian Angel of Cell's genome'. It checks the integrity of $\mathrm{DNA}$ at

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Spindle fibres attach on to:

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Cell in the quiescent stage $\left({\mathrm{G}}_0\right)$

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

The centriole undergoes duplication during:

MEDIUM

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

The fruit fly has $8$ chromosomes $\left(2n\right)$ in each cell. During the interphase of mitosis if the number of chromosomes at ${\mathrm{G}}_1$ phase is $8.$ What would be the number of chromosomes after the S phase?

EASY

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Cells in G₀ phase:

MEDIUM

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

Which of the following best describes the DNA content and the number of chromosomes at the end of S and M phases of the cell cycle in mitosis, if the DNA content of the cell at the beginning of the cell cycle (G1 phase) is considered as C and the number of chromosomes 2 N?

HARD

Biology>Cell : Structure and Functions>Cell Cycle and Cell Division>Cell Cycle

A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has: