NEET Biology Cell Cycle and Cell Division MCQs Set A

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MCQ for Full Syllabus Biology Cell Cycle and Cell Division

Full Syllabus Biology students should refer to the following multiple-choice questions with answers for Cell Cycle and Cell Division in Full Syllabus.

Cell Cycle and Cell Division MCQ Questions Full Syllabus Biology with Answers

 

 

Question: The sequence of events by which cells duplicate their genome, synthesize the other components of cell which eventually distribute into two daughter cells is called

  • a) Cell cycle
  • b) Kinetochore
  • c) Generation time
  • d) Quiescent stage

Answer: Cell cycle

 

Question: DNA replication occurs in

  • a) S phase
  • b) M phase
  • c) G2 phase
  • d) G1 phase

Answer: S phase

 

Question: The phase between the two successive M phase is called as

  • a) Interphase
  • b) Prophase
  • c) Anaphase
  • d) Metaphase

Answer: Interphase

 

Question: A biosynthetic phase where cell organelle duplicate itself is

  • a) Interphase
  • b) Anaphase
  • c) Prophase
  • d) Telophase

Answer: Interphase

 

Question: Yeast can progress through the cell cycle in about

  • a) 90 min
  • b) 90 hrs
  • c) 90 yrs
  • d) 90 sec

Answer:  90 min

 

Question:  _________ represents the most active stage of the cell cycle

  • a) Interphase
  • b) Telophase
  • c) Anaphase
  • d) Metaphase

Answer: Interphase

 

Question: Interphase is called the resting phase because

  • a) It does not involve any activity related to cell division
  • b) It does not prepare cell for cell division
  • c) It is the phase where cell rests before entering into mitosis
  • d) It is the most active phase of the cell cycle

Answer: It does not involve any activity related to cell division

 

Question: _________ phase synthesizes enzymes required during S phase

  • a) G1
  • b) S
  • c) M
  • d) G2

Answer: G1

 

Question:  Non-dividing cells enter the

  • a) G0 phase
  • b) S phase
  • c) M phase
  • d) G2 phase

Answer: G0 phase

 

Question: The cells which enter _________ phase start differentiating into specific types of cell

  • a) G0
  • b) S
  • c) G2
  • d) G1

Answer: G0

 

Question: If the initial amount of DNA is 8 C, then after S phase the amount of DNA would be

  • a) 16 C
  • b) 64 C
  • c) 8 C
  • d) 4 C

Answer: 16 C

 

Question: The number of chromosomes in G1 phase is 36, the number of chromosomes in S phase is

  • a) 36
  • b) 18
  • c) 22
  • d) 37

Answer: 36

 

Question:  A phase of the cell cycle which lasts more than 95% of the total duration is

  • a) Interphase
  • b) Prophase
  • c) Anaphase
  • d) Telophase

Answer: Interphase

 

Question: Most dramatic period of cell cycle is

  • a) M phase
  • b) S phase
  • c) G2 phase
  • d) G1 phase

Answer: M phase

 

Question: Two daughter cells formed after mitosis are

  • a) Identical to each other
  • b) Irregular in size
  • c) Non-identical to each other
  • d) Non-identical to parents

Answer: Identical to each other

 

Question: A cell division in which a diploid somatic cell divides into two identical daughter cells is called

  • a) Mitosis
  • b) Cytokinesis
  • c) Meiosis II
  • d) Meiosis I

Answer: Mitosis

 

Question: Which type of cell division is called somatic cell division?

  • a) Mitosis
  • b) Reduction division
  • c) Meiosis II
  • d) Meiosis I

Answer: Mitosis

 

Question: Mitosis occurs in

  • a) More than one option is correct
  • b) Undifferentiated germ cells
  • c) Meristematic cells
  • d) Somatic cells

Answer: More than one option is correct

 

Question: The first phase of mitosis which follows interphase is

  • a) Prophase
  • b) Telophase
  • c) Anaphase
  • d) Metaphase

Answer:  Prophase

 

Question: Initiation of condensation of chromatin material occurs in

  • a) Prophase
  • b) Anaphase
  • c) Telophase
  • d) Metaphase

Answer: Prophase

 

More Questions.......................................

 

Question: Mitotic spindle initiates during

  • a) Prophase
  • b) Metaphase
  • c) Anaphase
  • d) Telophase

Answer: Prophase

 

Question: Nucleolus and nuclear membrane disappear during

  • a) Prophase
  • b) Telophase
  • c) Interphase
  • d) Anaphase

Answer: Prophase

 

Question: The chromosomes are shortest and thickest during

  • a) Metaphase
  • b) Anaphase
  • c) Telophase
  • d) Interphase

Answer: Metaphase

 

Question: The chromosomes align at the equator during

  • a) Metaphase
  • b) Telophase
  • c) Prophase
  • d) Interphase

Answer: Metaphase

 

Question: Read the following statements

(a) Complete disintegration of the nuclear envelope marks the start of the second phase of mitosis.
(b) Metaphase chromosome is made up of one sister chromatid.

  • a) Only (a) is correct
  • b) Only (b) is correct
  • c) Both (a) & (b) are correct
  • d) Both (a) & (b) are incorrect

Answer: Only (a) is correct

 

Question: The morphology of the chromosomes is studied during

  • a) Metaphase
  • b) Interphase
  • c) Prophase
  • d) Telophase

Answer: Metaphase

 

Question: The point of attachment of microtubules on the chromosome is called as

  • a) Kinetochore
  • b) Chromatid
  • c) Spindle
  • d) Centromere

Answer: Kinetochore

 

Question: Chromosomes move towards the pole during

  • a) Anaphase
  • b) Telophase
  • c) Metaphase
  • d) Prophase

Answer: Anaphase

 

Question: The centromere splits during

  • a) Anaphase
  • b) Telophase
  • c) Interphase
  • d) Prophase

Answer: Anaphase

 

Question: The chromosomes cluster at opposite poles and their identity is lost as discrete elements during

  • a) Telophase
  • b) Anaphase
  • c) Metaphase
  • d) Prophase

Answer: Telophase

 

Question: The mitotic spindle disappears in

  • a) Telophase
  • b) Anaphase
  • c) Metaphase
  • d) Prophase

Answer: Telophase

 

Question:  Decondensation of chromosomes occurs during

  • a) Telophase
  • b) Anaphase
  • c) Metaphase
  • d) Prophase

Answer: Telophase

 

Question: The nuclear envelope reassembles during

  • a) Telophase
  • b) Prophase
  • c) Anaphase
  • d) Metaphase

Answer: Telophase

 

Question: _________ phase marks the end of M-phase

  • a) Cytokinesis
  • b) Telophase
  • c) Prophase
  • d) Karyokinesis

Answer:  Cytokinesis

 

Question: If karyokinesis is not followed by cytokinesis, then gives rise to

  • a) Multinucleate condition
  • b) Embryo
  • c) Fertilised egg
  • d) Zygote

Answer: Multinucleate condition

 

Question: A single cell containing large number of nuclei is called

  • a) Syncytium
  • b) Cell plate
  • c) Monad
  • d) Bivalent

Answer: Syncytium

 

Question: A type of cell division which reduces chromosome number to half is

  • a) Meiosis
  • b) Fragmentation
  • c) Multiple fission
  • d) Mitosis

Answer: Meiosis

 

Question: In meiosis-I, condensation and coiling of chromatin fibres started during

  • a) Leptotene
  • b) Metaphase
  • c) Diakinesis
  • d) Diplotene

Answer: Leptotene

 

Question: In pachytene, each tetrad contains

  • a) Four chromatids
  • b) Three chromatids
  • c) One chromatid
  • d) Two chromatids

Answer: Four chromatids

 

Question: Crossing over occurs during

  • a) Pachytene
  • b) Diplotene
  • c) Leptotene
  • d) Anaphase I

Answer:  Pachytene

 

Question: The homologous chromosomes move towards the opposite poles during

  • a) Anaphase I
  • b) Anaphase II
  • c) Leptotene
  • d) Pachytene

Answer: Anaphase I

 

Question: _________ marks the site where crossing over had occurred

  • a) Chiasmata
  • b) Leptotene
  • c) Synapsis
  • d) Diakinesis

Answer: Chiasmata

 

Question: Terminalisation of chiasmata occurs during

  • a) Prophase-I
  • b) Metaphase-I
  • c) Anaphase-I
  • d) Telophase-I

Answer:  Prophase-I

 

Question: Bivalent chromosomes align themselves at the equator during

  • a) Metaphase I
  • b) Prophase I
  • c) Metaphase II
  • d) Anaphase II

Answer: Metaphase I

 

Question:  Major check point of cell cycle is

  • a)

  • b)

  • c) Both
  • d) None of these

Answer:

 

Question:

  • a) G1 cyclin and cdc2 kinase
  • b) Cyclin independent kinases
  • c) Cyclins only
  • d) Mitotic cyclin and cdc2 kinase

Answer:  G1 cyclin and cdc2 kinase

 

Question: What will be the total number of mitotic divisions in the formation of 64 daughter cells?

  • a) 63
  • b) 16
  • c) 32
  • d) 6

Answer: 63

 

Question: If there are 30 chromosomes in G1 phase then what will be number of bivalents in zygotene stage?

  • a) 15
  • b) 45
  • c) 60
  • d) 30

Answer: 15

 

Question: What will be the amount of DNA in meiosis II products if meiocyte contains 30 Pg DNA in G1 phase?

  • a) 15 Pg
  • b) 120 Pg
  • c) 60 Pg
  • d) 30 Pg

Answer: 15 Pg

  

Question: Agglutination of chromosomes is caused by a mitotic poison called

  • a) Mustard gas
  • b) Ribonuclease
  • c) Azide
  • d) Chalones

Answer: Mustard gas

 

Question: Select an incorrect statement w.r.t. cell cycle

  • a) Duplication of genes occurs twice in meiosis
  • b) Karyokinesis occurs twice during meiotic division
  • c) Cyclins are proteins that activate protein kinases to regulate the cell cycle
  • d) After telophase-I, chromosome number is reduced to half

Answer: Duplication of genes occurs twice in meiosis

 

Question:  Maturation promoting factor formation triggers the cell to cross

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: Cyclin Dependent Kinases (CDKs)

  • a) Control various phases of cell cycle
  • b) Cause disassembly of the microtubules
  • c) Act as mitotic poisons
  • d) Arrest cell division due to non-formation of spindle

Answer:  Control various phases of cell cycle

 

Question:

  • a) d only
  • b) b, c & d
  • c) b & c
  • d) c & d

Answer: d only

 

Question: Which phase of interphase is the most important point in regulation of the cell cycle, during which it must decide whether the cell will start a new cycle or will enter in G0 phase?

  • a) G1 phase
  • b) S phase
  • c) G2 phase
  • d) Quiescent stage

Answer:  G1 phase

 

Question:

How many of the above features are associated with synthesis phase of cell cycle?

  • a) Five
  • b) Four
  • c) Six
  • d) Three

Answer: Five

 

Question: Identify the mismatched pair

  • a) B – Stage where cells are inactive metabolically
  • b) A – Starts with karyokinesis and ends with cytokinesis
  • c) C – Cell grows and carries out normal metabolism
  • d) D – Period of cytoplasmic growth

Answer: B – Stage where cells are inactive metabolically

 

Question: The two daughter cells formed during mitosis contains

  • a) The same amount of DNA and the same set of chromosomes as those of the parent cell
  • b) The same amount of DNA but a set of chromosomes different from those of parental cells
  • c) Double the amount of DNA and a set of chromosomes different from those of the parent cell
  • d) Half the amount of DNA and the same set of chromosomes as those of the parent cell

Answer: The same amount of DNA and the same set of chromosomes as those of the parent cell

 

Question: Higher plants differ from animals in having

  • a) Anastral mitosis
  • b) Disappearance of nucleolus during prophase
  • c) Spindle microtubule
  • d) Kinetochores

Answer: Anastral mitosis

 

Question:  Which of the following phases are longest and shortest in mitosis?

  • a) Prophase, Anaphase
  • b) Prophase, Telophase
  • c) Metaphase, Anaphase
  • d) Telophase, Anaphase

Answer:  Prophase, Anaphase

 

Question: The period between two successive divisions is called

  • a) Cellcycle
  • b) Cell division
  • c) Cell division
  • d) None of these

Answer: Cellcycle

 

Question: What is the average cell cycle span of a human cell ?

  • a) 24 Hrs
  • b) 30 Hrs
  • c) 20 Hrs.
  • d) 17 Hrs.

Answer: 24 Hrs

 

Question: The chromosomes are distributed in two cells in half thir number is called

  • a) Heterotypic division
  • b) Cellcycle
  • c) Cytokineis
  • d) Mitosis

Answer: Heterotypic division

 

Question: During cell cycle DNA replication takes place in

  • a) S - phase
  • b) M - phase
  • c) G2 - phase

Answer: S - phase

 

Question: During which of the following phase of mitosis asters appear round the centrioles ?

  • a) Prophase
  • b) Metaphase
  • c) Anaphase
  • d) Telophase

Answer: Prophase

 

Question: At Which sub stage of meiosis crossing over takes place ?

  • a) Pachytene
  • b) Diplotene
  • c) Zygotene
  • d) Leptotene

Answer: Pachytene

 

Question: During which of the following stage of division nuclear membrane and nucleolus reappear ?

  • a) Telophase
  • b) Anaphase
  • c) Metaphase
  • d) Prophase

Answer: Telophase

 

Question: What is average cell cycle span of a Yeast cell ?

  • a) 90 min.
  • b) 120 min.
  • c) 85 min
  • d) 70 min

Answer: 90 min.

 

Question: Interphase can be divided into how many sub phases ?

  • a) 3
  • b) 2
  • c) 8
  • d) 5

Answer: 3

 

Question: In how many phase the mitosis can be divided ?

  • a) 4
  • b) 8
  • c) 3
  • d) 5

Answer: 4

 

Question: The result of meiosis is the formation of

  • a) 8 cells
  • b) 6 cells
  • c) 2 cells
  • d) 4 cells

Answer: 8 cells

 

Question: The locations at which crossing over occurs are known as

  • a) Chiasmata
  • b) Centriole
  • c) Kinetochore
  • d) Centromere

Answer: Chiasmata

 

Question: Complete disintegration of nuclear membrane and nucleolus take place during which stage of mitosis ?

  • a) Prophase
  • b) Metaphase
  • c) Anaphase
  • d) Telophase

Answer: Prophase

 

Question: Which of the following structure will not be common to mitotic cell of a higher plant ?

  • a) Centriole
  • b) Spindle fibre
  • c) Centromere
  • d) Cell plate

Answer: Centriole

 

Question: How many mitotic division are needed for a single cell to make 128 cells ?

  • a) 7
  • b) 34
  • c) 25
  • d) 54

Answer: 7

 

Question: Series of cell division is

  • a) prophase, metaphase, anaphase, telophase
  • b) prophase, anaphase, metaphase, telophase
  • c) prophase, metaphase, telophase, anaphase
  • d) anaphase, metaphase, telophase, prophase

Answer: prophase, metaphase, anaphase, telophase

 

Question: Meiosis involves

  • a) two nuclear division and one chromosome division
  • b) two each nuclear and chromosome division
  • c) one each nuclear and chromosome division
  • d) one nuclear and two chromosomes division

Answer: two nuclear division and one chromosome division

 

Question: The sequence of cell cycle is

  • a) G1, S, G2 and M
  • b) M, G1, G2 and S
  • c) S, M, G1 and G2
  • d) None of these

Answer:  G1, S, G2 and M

 

Question: Which of the correct order of phases in prophsae I ?

  • a) Leptotene, zygotene, pachytene, diplotene, diakinesis
  • b) Leptotene, diakinesis, pachytene, diplotene, zygotene
  • c) Diakinesis, diplotene, pachytene, zygotene, leptotene
  • d) Laptotene, pachytene, zygotene, diplotene, dikinesis

Answer: Leptotene, zygotene, pachytene, diplotene, diakinesis

 

Question: In how many cells the meiotic division has taken place, if the total number of gametes produced are 32 ?

  • a) 8
  • b) 32
  • c) 16
  • d) 4

Answer: 8

 

Question: Stomatal aperature is surrounded by guard cells and opens when guard cells are

  • a) Turgid
  • b) Flaccid
  • c) Bean shaped
  • d) Dumb-bell shaped

Answer: Turgid

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