QuizPilotSubjectsBiologiya
Biologiya

Cell cycle and cell division

by unknown · 18 questions · 0 saves · 0 likes
Play in QuizPilot
#1
What is the fundamental characteristic of all living organisms mentioned in the text?
  1. Formation of millions of cells from a single cell
  2. Metabolic activity and response to stimuli
  3. Ability to reproduce by dividing into two
  4. Ability to grow and reproduce
Show answer
Ability to grow and reproduce
#2
Which process involves the duplication of the cell's genome, synthesis of other constituents, and eventual division into two daughter cells?
  1. Cell cycle
  2. DNA replication
  3. Cell growth
  4. Cytokinesis
Show answer
Cell cycle
#3
In a typical eukaryotic cell cycle, what percentage of the duration is generally occupied by the interphase?
  1. Approximately 50%
  2. More than 95%
  3. Exactly 24 hours
  4. Less than 5%
Show answer
More than 95%
#4
Which phase of the cell cycle is characterized by the cell preparing for division by undergoing growth and DNA replication?
  1. Interphase
  2. M Phase
  3. S phase
  4. G1 phase
Show answer
Interphase
#5
During which phase of the cell cycle does DNA synthesis or replication primarily occur?
  1. G1 phase
  2. G2 phase
  3. S phase
  4. M Phase
Show answer
S phase
#6
If the initial amount of DNA in a cell at G1 phase is denoted as 2C, what is the amount of DNA after the S phase?
  1. 4C
  2. 1C
  3. 8C
  4. 2C
Show answer
4C
#7
What happens to the number of chromosomes in a cell during the S phase, even though the DNA content doubles?
  1. It doubles
  2. It remains the same
  3. It halves
  4. It becomes haploid
Show answer
It remains the same
#8
In animal cells, during the S phase, besides DNA replication in the nucleus, what else duplicates in the cytoplasm?
  1. Golgi apparatus
  2. Centrosome
  3. Mitochondria
  4. Ribosomes
Show answer
Centrosome
#9
What is the quiescent stage (G0) of the cell cycle?
  1. An inactive stage where cells exit G1 and do not proliferate
  2. The final stage of cell division
  3. The phase where DNA replication occurs
  4. A phase of rapid cell division
Show answer
An inactive stage where cells exit G1 and do not proliferate
#10
Mitosis is also referred to as equational division because:
  1. It involves the separation of homologous chromosomes
  2. The number of chromosomes in parent and progeny cells is the same
  3. It is the first stage of meiosis
  4. It results in haploid daughter cells
Show answer
The number of chromosomes in parent and progeny cells is the same
#11
Which of the following is NOT one of the four stages of karyokinesis in mitosis?
  1. Metaphase
  2. Prophase
  3. Telophase
  4. Interphase
Show answer
Interphase
#12
What marks the initiation of condensation of chromosomal material during prophase?
  1. Centrosome duplication
  2. DNA replication
  3. Cytokinesis
  4. Chromatin condensation
Show answer
Chromatin condensation
#13
What are the microtubules radiating from the centrosome called during prophase?
  1. Asters
  2. Chromatids
  3. Centromeres
  4. Spindle fibres
Show answer
Asters
#14
The M Phase typically ends with:
  1. DNA replication
  2. Cell growth
  3. Nuclear division (karyokinesis)
  4. Division of cytoplasm (cytokinesis)
Show answer
Division of cytoplasm (cytokinesis)
#15
Which phase of mitosis is characterized by the complete disintegration of the nuclear envelope, allowing chromosomes to spread through the cytoplasm?
  1. Anaphase
  2. Metaphase
  3. Telophase
  4. Prophase
Show answer
Metaphase
#16
What are the small disc-shaped structures on the surface of centromeres called, which serve as attachment sites for spindle fibres?
  1. Chromatids
  2. Kinetochores
  3. Centromeres
  4. Spindle fibres
Show answer
Kinetochores
#17
In anaphase, what part of the chromosome remains directed towards the pole as the chromosome moves away from the equatorial plate?
  1. The centromere
  2. The sister chromatid
  3. The kinetochore
  4. The arms
Show answer
The centromere
#18
Which stage of karyokinesis is characterized by chromosomes clustering at opposite spindle poles, losing their individuality, and the reformation of the nuclear envelope?
  1. Cytokinesis
  2. Metaphase
  3. Telophase
  4. Anaphase
Show answer
Telophase
Play in QuizPilot