Download App

BIOLOGY M.C.Q (1 Marks)

PART - 1 - Unit III : CH - 10 Cell Cycle and Cell Division · Gujarat Board (GSEB) STD 11 Science (GSEB - English Medium). 39 questions.

Questions

M.C.Q (1 Marks)

Take a timed test

39 questions · auto-graded multiple-choice test.

MCQ 11 Mark
The cells and blood cells of the inner surface of the alimentary canal are continuously replaced, whose contribution is in this?
  • A
    Meiosis
  • ✓
    Mitotic division
  • C
    Amitotic
  • D
    None of these
Answer
Correct option: B.
Mitotic division
B
View full question & answer→
MCQ 21 Mark
The growth of multicellular organisms occurs due to which of the following?
  • ✓
    Mitosis
  • B
    Amitotic division
  • C
    Meiosis
  • D
    All of these
Answer
Correct option: A.
Mitosis
A
View full question & answer→
MCQ 51 Mark
Which sequence of phases is correct in relation to the cell cycle?
  • A
    $G_{1}$, $G_{2}$, S and M
  • B
    S, $G_{1}$, $G_{2}$ and M
  • ✓
    $G_{1}$, S, $G_{2}$ and M
  • D
    $G_{2}$, S, $G_{1}$ and M
Answer
Correct option: C.
$G_{1}$, S, $G_{2}$ and M
C
View full question & answer→
MCQ 61 Mark
Which of the following stages comes between $G_{1}$ and $G_{2}$ stages of the cell cycle?
  • A
    M phase
  • B
    Go phase
  • ✓
    S phase
  • D
    Interphase
Answer
Correct option: C.
S phase
C
View full question & answer→
MCQ 71 Mark
In the $G_{0}$ phase of the cell cycle, the cell :
  • A
    Exits the cell cycle.
  • B
    Enters the cell cycle.
  • ✓
    Suspends the cell cycle.
  • D
    End the cell cycle.
Answer
Correct option: C.
Suspends the cell cycle.
C
View full question & answer→
MCQ 81 Mark
Meiosis-I is reduction division, meiosis-II is equational division. The reason is:
  • A
    Pairing of homologous chromosomes
  • B
    Crossing over
  • C
    Chromatids or separation
  • ✓
    Separation of homologous chromosomes
Answer
Correct option: D.
Separation of homologous chromosomes
D
View full question & answer→
MCQ 91 Mark
The number of chromatids in metaphase is:
  • ✓
    Two each in mitosis and meiosis
  • B
    Two in mitosis and one in meiosis
  • C
    Two in mitosis and four in meiosis
  • D
    Two in mitosis and two in meiosis
Answer
Correct option: A.
Two each in mitosis and meiosis
A
View full question & answer→
MCQ 101 Mark
In the cell cycle, maternal and paternal chromosomes exchange their substances, this phenomenon is called:
  • A
    Double conjunction formation
  • B
    Pair formation
  • C
    Synapsis
  • ✓
    Crossing over
Answer
Correct option: D.
Crossing over
D
View full question & answer→
MCQ 111 Mark
Synapsis occurs between:
  • ✓
    Two homologous chromosomes
  • B
    One male and one female gamete
  • C
    mRNA and ribosome
  • D
    Spindle fibre and centromere
Answer
Correct option: A.
Two homologous chromosomes
A
View full question & answer→
MCQ 121 Mark
In which type of cell division the number of chromosomes decreases?
  • ✓
    Meiosis
  • B
    Mitosis
  • C
    Amitosis
  • D
    Cleavage
Answer
Correct option: A.
Meiosis
A
View full question & answer→
MCQ 131 Mark
Which of the following is synthesised in $G_{1}$ phase?
  • A
    DNA and histone
  • ✓
    RNA and proteins
  • C
    DNA and RNA
  • D
    DNA, RNA and proteins
Answer
Correct option: B.
RNA and proteins
B
View full question & answer→
MCQ 141 Mark
Which phase of karyokinesis in mitosis has the longest interval?
  • ✓
    Prophase
  • B
    Metaphase
  • C
    Anaphase
  • D
    Telophase
Answer
Correct option: A.
Prophase
A
View full question & answer→
MCQ 161 Mark
Meiosis is important because:
  • A
    It produces identical cells.
  • ✓
    It restores the original number of chromosomes.
  • C
    This causes doubling of the DNA quantity of the cell.
  • D
    It occurs only in cells.
Answer
Correct option: B.
It restores the original number of chromosomes.
B
View full question & answer→
MCQ 171 Mark
Copying of DNA takes place in the cell cycle:
  • A
    In $G_{1}$ state
  • B
    In $G_{2}$ state
  • C
    In mitotic metaphase
  • ✓
    In S state
Answer
Correct option: D.
In S state
D
View full question & answer→
MCQ 181 Mark
By what means do the chromosomes get attached to the spindle fibre in metaphase?
  • A
    Through chromosome point
  • B
    By subsidiary
  • C
    Through secondary narrowing
  • ✓
    Through kinetochores
Answer
Correct option: D.
Through kinetochores
D
View full question & answer→
MCQ 191 Mark
During cell division, the spindle fibres attached to a region of the chromosome are called:
  • A
    Chromocentre
  • ✓
    Kinetochore
  • C
    Centriole
  • D
    Chromomere
Answer
Correct option: B.
Kinetochore
B
View full question & answer→
MCQ 201 Mark
In some endosperm development of plants, nuclear division takes place successively and many nuclei are formed. An example of this is:
  • ✓
    Liquid endosperm of coconut
  • B
    Endosperm of maize
  • C
    Endosperm of castor
  • D
    Endosperm of wheat
Answer
Correct option: A.
Liquid endosperm of coconut
A
View full question & answer→
MCQ 211 Mark
The best stage to study the size, shape and number of chromosomes is:
  • A
    Interphase
  • ✓
    Metaphase
  • C
    Prophase
  • D
    Telophase
Answer
Correct option: B.
Metaphase
B
View full question & answer→
MCQ 221 Mark
What is the complex formed by a pair of homologous chromosomes called?
  • A
    Intermediate plate
  • B
    Kinetochore
  • ✓
    Tetard
  • D
    Axoneme
Answer
Correct option: C.
Tetard
C
View full question & answer→
MCQ 231 Mark
The last stage of meiosis-I is called:
  • ✓
    Diakinesis
  • B
    Middle stage-I
  • C
    End stage-I
  • D
    Late phase
Answer
Correct option: A.
Diakinesis
A
View full question & answer→
MCQ 251 Mark
Which of the following events occurs in $G_{1}$ phase?
  • A
    DNA synthesis
  • ✓
    RNA synthesis
  • C
    Reverse transcription
  • D
    All of these
Answer
Correct option: B.
RNA synthesis
B
View full question & answer→
MCQ 261 Mark
What type of cell division takes place in the genitals?
  • A
    Only mitosis
  • B
    Meiosis
  • ✓
    Both (a) and (b)
  • D
    Amitotic and meiotic
Answer
Correct option: C.
Both (a) and (b)
C
View full question & answer→
MCQ 271 Mark
Repulsion occurs between homologous chromosomes:
  • A
    In zygotene
  • B
    In leptotene
  • C
    In diakinesis
  • ✓
    In diplotene
Answer
Correct option: D.
In diplotene
D
View full question & answer→
MCQ 281 Mark
The four daughter cells formed after meiosis are:
  • A
    Genetically identical
  • ✓
    Genetically unequal
  • C
    Non-central
  • D
    Multi-nucleated
Answer
Correct option: B.
Genetically unequal
B
View full question & answer→
MCQ 291 Mark
Mitosis is important because it :
  • A
    Completes quickly.
  • B
    Can occur inside the ground.
  • ✓
    Forms similar cells.
  • D
    Can occur in all parts of the body.
Answer
Correct option: C.
Forms similar cells.
C
View full question & answer→
MCQ 301 Mark
Which is the most active stage of the cell cycle?
  • ✓
    Telophase
  • B
    Anaphase
  • C
    Prophase
  • D
    Metaphase
Answer
Correct option: A.
Telophase
A
View full question & answer→
MCQ 311 Mark
During gamete formation, in which stage does recombinase enzyme participate?
  • A
    Metaphase-II
  • B
    Anaphase-II
  • ✓
    Prophase-II
  • D
    Interphase-II
Answer
Correct option: C.
Prophase-II
C
View full question & answer→
MCQ 321 Mark
What is the exchange of genetic material between homologous chromosomes in meiosis called ?
  • A
    Synapsis
  • B
    Association
  • ✓
    Crossing over
  • D
    Mutation
Answer
Correct option: C.
Crossing over
C
View full question & answer→
MCQ 331 Mark
What is not visible during mitosis in vegetative cells:
  • ✓
    Synapsis
  • B
    Spindle fiber
  • C
    Chromosome movement
  • D
    Disappearance of nucleus
Answer
Correct option: A.
Synapsis
A
View full question & answer→
MCQ 341 Mark
At what stage does synapsis occur?
  • A
    Leptotene
  • B
    Zygotene
  • ✓
    Pachytene
  • D
    Diplotene
Answer
Correct option: C.
Pachytene
C
View full question & answer→
MCQ 351 Mark
The difference between meiotic and mitotic division is:
  • A
    Formation of spindle fibres
  • B
    Duplication of DNA
  • ✓
    Formation of Chiasmata
  • D
    Multiplication of chromosomes
Answer
Correct option: C.
Formation of Chiasmata
C
View full question & answer→
MCQ 361 Mark
If a cell has 16 chromosomes, then in which stage of mitotic phase will a total of 32 chromosomes be seen at both the poles?
  • A
    Prophase
  • B
    Metaphase
  • ✓
    Anaphase
  • D
    Telophase
Answer
Correct option: C.
Anaphase
C
View full question & answer→
MCQ 371 Mark
What are spindle fibres made of in animals?
  • A
    Nucleus
  • B
    Golgi apparatus
  • ✓
    Centriole
  • D
    Nucleus
Answer
Correct option: C.
Centriole
C
View full question & answer→
MCQ 381 Mark
When do chiasmata appear in meiosis:
  • A
    In pachytene
  • ✓
    In diplotene
  • C
    In diakinesis
  • D
    In Leptotene
Answer
Correct option: B.
In diplotene
B
View full question & answer→
MCQ 391 Mark
The method in which the number of chromosomes remains constant from generation to generation:
  • A
    Mitosis
  • ✓
    Meiosis
  • C
    Metamorphosis
  • D
    Amitotic
Answer
Correct option: B.
Meiosis
B
View full question & answer→
Generate Paper FreeAll PART - 1 - Unit III : CH - 10 Cell Cycle and Cell Division topics