Cell cycle MCQs Biology 12th class Fsc chapter 21. All MCQs are given with answer keys. These MCQs are collected from past papers of fsc all Punjab Boards. Past papers MCQs are from the Boards of Lahore, Multan, Dera Ghazi Khan, Faisal abad, Gujran wala, Rawalpindi, Faisla abad and so many others.
Cell Cycle MCQs Biology Fsc Part 2 Unit 21
Here are cell cycle MCQs Biology of fsc chapter 21 fully solved. MULTIPLE CHOICE QUESTIONS (MCO’s) From Previous Board Papers 2014-2015-2016-2017-2018)
Nerve cells and eye lens cells remain in stage for a lifetime. (MLN. GI, 2016).
(A) O,
(B) G2
(C) Go
(D) S
In the case of human cell, the average cell cycle is about: (SWL. GI, 2016XMLN. GI, 2017) (LHR. GI, 2018)
(A) 24 hours
(B) 26 hours
(C) 28 hours
(D) 30 hours
The full cell cycle in yeast cells has a length of: (LIIR. GI. 2015/LUR. GI, 2016}(SGD. 2017)
(A) 30 minutes
(B) 60 minutes
(C) 90 minutes
(D) 120 minutes
DNA synthesis and chromosomal doubling occurs in: (SGD. GI, 2015)(SGD. GI, 2016)
(A) G-phase
(B) G2 – phase
(C) Go-phase
(D) S. phase
The interphase period can be divided into: (SGD. GI, 2015)(SGD. GI. 2016)
(A) G1, G2, G3
(B) G1, G2, G
C G1.S, G2
(D) S, G, S2
Mitotic cells can exist cell cycle during: (BWP. GI, 2015}(DGK. GI, 2016) (SGD. 2018)
(A) Go – phase
(B) G1 – phase
(C) S-phase
(D) G2 – phase
Karyokinesis involves division of: (DGK, GI. 2016)
(A) Cell
D) Nucleus
(C) Cytoplasm
(D) Cell Membrane
For the Formation of the phragmoplast, the vesicles originate from: (LHR. GII, 2015)(LHR. GII. 2016) (SWL. 2018)
(A) Endoplasmic Reticulum
(B) Golgi Complex
(C) Chloroplast
(D) Mitochondria
The microtubule is composed of traces of RNA and protein called:(LHR. GII, 2015) (DGK. 2018) (DGK. 2018)
(A) Myosin
(B) Troponin
(C) Actin
(D) Tubulin
The microtubules of mitotic apparatus are composed of protein tubulin and traces of: (GRW.GII. 2015) LIIR. GI, AJK. GI, 2016)
(A) DNA
(B) RNA
(C) Lipids
(D) Terpenoids
Tissue culture and cloning seek help through:(GRW, GII, 2015)
(A) Mitosis
(B) Endomitosis
(C) Meiosis
(D) Karyokinesis
During cell division, the nuclear division is called: (MLN, GI, 2015) (SWL. 2017)
(A) Cytokinesis
(B) Karyokinesis
(C) Karyotype
(D) Plasmolysis
Karyokinesis involves division of the nucleus and Cytokinesis refers to: (BWP. GI. 2015)
(A) Division of whole cell
(B) Division of Cytoplasm
(C) Division of Centromere
(D) Division of Cell Wall
The number of sets of microtubules originate from each pair of centriole is: (AJK. CI, 2015)
A 03 .
(B) 04
(C) 05
(D) 06
Chromatin network is visible during: (GRW, GI. 2014%DGK. G11, 2017)
(A) Interphase
(B) Prophase
(C) Metaphase
(D) Anaphase
Contractile ring in cytokinesis is formed by: (RWF. G1.2010)
(A) Tubulin
B. Actin and Myosin
(C) Keratin
(D) Cyclin
The most critical phase of mitosis, it helt ensures equul distribution of chromatids in the
daughter cells is: (PHD. GI, DOK, G11. 2014.MGK, GII, 2017
A Anaphase
(B) Metaphase
(C) Prophase
(D) Telephase
inch bivalent consists of four: (KWP. GI, 2017)
(A) Chromosomes
B Chromatids
(C) Chiasinata
(D)) Spores
Ench Wivalent is consists of four: (BWP. 2018)
(A) Chromosome
(B) Chromatids
(C) Chiasmata
(D) Spore
Which of the following behaves like normal cells? (SGD. 01. 2016)
A Benign tumor
(B) Malignant tumor
(C) Cancer
(D). Gall
The tumor which is localized and not transferred to other body parts:(+80. GI.2016) (FBD). 2014)
(A) Malignant
B) Benign
(C) Apoptosis
(D) Necrosis
Which tumor is delocalized or has branches other than site of origin: (SGD), GI, 2015)
(A) Benign
B) Malignant
(C) Both
(D) Apoptosis
Cancer is caused mainly by a mutation in: (MLN. G1, 2015(DGK, GI, 2017)
(A) Somatic cells
(B) Malignant cells
(C) Sex cells
(D) Reproductive cells
The spread of tumor cells and establishment of a secondary area of growth is known as: (LUIK, GII, 2014)(FBD. 2017)
(A) Necrosis
(B) Apoptosis
(C) Metastasis
(D) Epigenesis
Cancer occurs due to error in: (SWI. G1, 2014)
A Mitosis
(B) Meiosis
(C) Binary fission
(D) Budding
An unwanted clone of cells and establishment of secondary areas of growth is called: (MLN. GI, 2014)
A Tumor
(B) Growth
(C) Lump
(D) Swelling
The pairing of homologous chromosomes is completed in (GRW.GI, 2015)
(A) Leptotenc
(B) Zygotene
(C) Diplotene
(D) Pachytene
The type of cell division in which number of chromosomes is reduced to half in daughter cells is
called: (FBD, G1, 2015)
(A) Mitosis
(B) Meiosis
(C) Budding
(D) Binary Fission
Which one sub-stage of prophase-I of Mciosis-1 lasts for days, week or even years? (DGK. G1, 2015)
(A) Zygotenc
(B) Leplotene
C Pachytene
(D) Diplotene
In which stage of Meiosis, crossing over occur? (SGD, GI. 2014)(MLN. GII, 2017)
(A) Leptotene
(B) Zygotene
(C) Pachytene
(D) Anaphase
The actual reduction division is: (BWP. GI, 2014)
A Meiosis-1
(B) Meiosis-11
(C) Mitosis
(D) Cytokinesis
The prophase stage in which the chromosomes become visible, shorten and thick: (DGR. GI. 2014/DGK. GII, 2016)
A Leptotene
(B) Zygotene
(C) Pachytenc
(D) Diplotene
Unequal separation of chromosomes is called: (MLN. G1, 2016)
(A) Disjunction.
(B) Separation
C Non-disjunction
(D) Metastasis
The syndrome in which an individual has short stature, webbed neck, without ovaries and
complete absence of germ cells is: (DGK. CI.2015)
A Mongolism
(B) Klinc felter syndrome
(C) Down’s Syndrome
(D) Turner’s Syndrome
All are related to Turner’s Syndrome, except: (FBD. GI, 2014)
(A) Short Stature
(B) Webbed Neck
C Broad Face
(D) Without (varies
In non disjunction, chromosomes fail to scqreqate during: (FBD. 2017)
(A) Prophase
(B) Metaphase
(C) Anaphase
(D) Telphase
Cell death due to tissue damage is called: (AJK. CI.SGD, GI, 2016/SILN. CI, SW L. 2017)
(A) Apoptosis
(B) Metastasis
(C) Necrosis
(D) Suicide
Programmed and organized process of cell death is also called
(A) Apoptosis
(B) Necrosis
(C) Cancer
(D) Metastasis
Apoptosis is: (LIIR. CI. 2014)
(A) Division of cells
(B) Death of Cells by tissue damage
(C) Suicide of cells
(D) Weakness of cells
Meiosis-ll is just like the:
(A) Amitosis
(B) Mitosis
(C) Regeneration
(D) Replacement
The duration of mitosis in the human cell cycle is: (GRW. 2017)
(A) 30 hour
(B) 30 sec
(C) 30 days
(D) 30 min
The sex chromosomes of the person affected with Klinefelter’s syndrome are: (RW.GI, 2017)
(A) XYY
(B) XXX
(C) XXY
(D) XY
The condensation of chromosomes reaches its maximum during: (LHR. GI, 2017)
(A) Diakinesis
(B) Pachytene
(C) Zygotene
(D) Leptotene
The presence of invading cells other than normal tissue is an indication of: (LHR. GI. 2017)
(A) Melatoma
(B) Abnormality
(C) Mutation
(D) Malignancy
The frequency of occurrence of down syndrome is: (GRW.2017)
1/700
1/40
1/500
1/200
The chromosomes appear as thin threads having length of: (MLN. GI, 2017)
(A) 0.25 pm to 50 um
(B) 2.5 um to 50 pm
(C) 25 um to 50 um
(D) 0.025 μm to 50 μm
A network of very fine threads called chromatin material can be visualized in cell during: (DGK, GII, 2017)
(A) Interphase
(B) Metaphase
(C) Anaphase
(D) Prophase
A group of similar cells that performs a specific function is called: (LIR. GII, 2017)
(A) Organ
(B) Tissue
(C) Organelle
(D) Organ system
The percentage of lipids in plasma membrane is: (LAR, GII, 2017)
(A) 60 – 80%
(B) 30 – 60%
(C) 20 – 40%
(D) 10-20%
The feeding stage of a slime mold is called: (LHR. GII, 2017)
(A) Thallus
(B) Hyphae
(C) Mycelium
(D) Plasmodium
Thylakoid membranes are involved in ATP synthesis by: (LHR. GII, 2017)
(A) Glycolysis
(B) Dark reaction
(C) Chemiosmosis
(D) Photolysis
Meiosis occurs only in: (LIIR, G1, 2018)
(A) Haploid cells
(B) Diploid cells
(C) Triploid cells
(D) Pentaploid cells
The death of the cell due to tissue damage is called: (LIIR. GI, 2018)
(A) Necrosis
(B) Phagocytosis
(C) Metastasis
(D) Apoptosis
The interphase of meiosis lacks the stage: (LIIR. GUI, 2018)
(A) G.
(B) G
(C) G2
(D) S
The full cell cycle in yeast cells is completed in: (MLN. 2018)
(A) 24 hours
(B) 4.5 hours
(C) 30 minutes
(D) 90 minutes
The autosomal non-disjunction in man in which 21st pair of chromosome fail to segregate
resulting in gametes with 24 chromosome is: (SWL. 2018)
A) Down’s syndrome
(B) turner’s syndrome
(C) Klinfilter syndrome
(D) jacob’s syndrome
Cell death due to tissue damage is called: (SGD. 2018)
(A) Apoptosis
(B) Metastasis
(C) Cyclosis
(D) Necrosis
Apoptosis is: (RWP, 2018)
(A) Division of cells
(B) Death of cells by tissue damage
(C) suicide of cells
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