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Process of uncontrolled cell division is due to which one of the following reasons?
NUMS 2018
Biology
Cell Cycle
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DNA is synthesized and chromosome number is doubled in
Reduction division is:
NUMS 2015
Biology
Cell Cycle
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Synthesis of microtubules increases in:
UHS 2018
Biology
Cell Cycle
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In gametogenesis, which resultant product is non-functional?
NTS 2019
Biology
Cell Cycle
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During which stage of meiosis do centromeres divide?
NTS 2016 DUHS & JSMU
Biology
Cell Cycle
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The phase of mitosis in which sister chromatids move towards opposite poles:
UHS 2019
Biology
Cell Cycle
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Mitotic apparatus in animals is formed by
Smooth endoplasmic reticulum is responsible for the metabolism of:
UHS 2019
Biology
Cell Cycle
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Microtubule subunits (for spindle fibers) are synthesized in _______ phase.
UHS 2019
Biology
Cell Cycle
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In which stage of meiotic division centromere divides?
NUMS 2017
Biology
Cell Cycle
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Which statement is incorrect?
Crossing over occur between ____________ of homologous chromosomes:
PMC Sample 1
Biology
Cell Cycle
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Chance of a cross over between two loci is directly proportional to their
UHS 2018
Biology
Cell Cycle
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Crossing over is an exchange of genes between _______ resulting in a mixture of parental characteristics in offspring.
NTS 2019
Biology
Cell Cycle
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Crossing over takes place during _____ of meiosis.
UHS 2018
Biology
Cell Cycle
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In plants mitotic apparatus consists of
Which of the following is NOT true for meiosis?
NUMS 2019 Reconduct
Biology
Cell Cycle
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During the formation of an ovum nondisjunction of the sex chromosomes occurred the ovum was then fertilized by a normal Y-bearing sperm cell which one of the following shows the sex chromosome complement of the resulting zygote?
NTS 2015 DUHS and JSMU
Biology
Cell Cycle
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Each kinetochore gets ________ fibers in mitosis
Which of the following sub stages does not occur in prophase I?
NTS 2015 SMBBMC
Biology
Cell Cycle
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Synaptonemal complex helps in:
NUMS 2014
Biology
Cell Cycle
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Bac
During meiosis, the homologous chromosomes come together and form pairs, this process is called:
PMC 2020
Biology
Cell Cycle
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Reverse of prophase is
A special area of centromere with specific base arrangement and specific proteins where spindle fibers are attached is called
Gametes in animals are produced by:
PMC 2021 Tested
Biology
Cell Cycle
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Microtubules are composed of
Failure of separation of sister chromatids is called:
NUMS 2020
Biology
Cell Cycle
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_______ is the stage of mitosis characterized by the physical separation of ________ chromatids.
NTS 2019
Biology
Cell Cycle
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At what phase the DNA content of a cell is doubled?
PMC 2020
Biology
Cell Cycle
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Meiosis occurs at the time of
Diplotene is the sub-stage of:
NTS 2011
Biology
Cell Cycle
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The term bivalent means:
NUMS 2014
Biology
Cell Cycle
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Mitosis occurs in
During interphase of the cell cycle, which of the following stage is for duplication of DNA:
NUMS 2019 Reconduct
Biology
Cell Cycle
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Which of the following statements concerning nucleolus is correct?
NTS 2014
Biology
Cell Cycle
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Meiosis occur in
During cell division, the spindle fibres get attached to condensing chromosome at a highly differentiated region. This region is called as:
NTS 2019
Biology
Cell Cycle
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Gametes in animals are produced by which of the following?
PMC Practice 2
Biology
Cell Cycle
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Which of the following statements is true about metaphase?
PMC 2021 Tested
Biology
Cell Cycle
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If a person has 44 autosomes + XXY, he will suffer from
UHS 2012
Biology
Cell Cycle
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Condensation of chromosomes reaches to the maximum during:
NUMS 2015
Biology
Cell Cycle
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At the beginning of nuclear division, the number of microtubule triplets in two pairs of centrioles that migrate to opposite poles are:
UHS 2015
Biology
Cell Cycle
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Which is a feature of malignant tumor?
In meiosis II, ______ differentiate into sperms.
NUMS 2019 Reconduct
Biology
Cell Cycle
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During anaphase, each chromosome has:
PMC 2021 Tested
Biology
Cell Cycle
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Asexual offsprings can be produced by:
PMC 2021 Tested
Biology
Cell Cycle
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Which of the following cells does not enter G0 phase?
NUMS 2020
Biology
Cell Cycle
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Spread of tumor cells and establishment of secondary areas of growth is
The second stage of the Prophase of Meiosis, following Leptotene, during which homologous chromosomes begin to pair is called:
NTS 2019
Biology
Cell Cycle
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Which statement is not true about phragmoplast?
Exchange of segments between homologous chromosomes is called:
UHS 2012
Biology
Cell Cycle
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Feature of cancer cells in common?
Most critical phase of mitosis is
_______ is the most critical phase of mitosis.
NUMS 2015
Biology
Cell Cycle
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During the G2 phase:
UHS 2019
Biology
Cell Cycle
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From each pair of centrioles ________ sets of microtubules originate
Interphase of meiosis lacks
In case of neurons, post mitotic cell escapes cell cycle and remain in _______ phase whthout proliferating further
Interphase is a phase of the cell cycle defined only by the absence of _______.
NTS 2019
Biology
Cell Cycle
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Period between two consecutive divisions is called
How does the second meiotic division differ from mitosis? In the second meiotic division:
NTS 2015 SMBBMC
Biology
Cell Cycle
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Gametes are produced by:
PMC 2021 Tested
Biology
Cell Cycle
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Which of the following is a type of cell division that plays an important role in evolution?
NTS 2019
Biology
Cell Cycle
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