Entry test 2023 MDCAT contains most of the Biology MCQs. FSC Part 1 bio book MCQs. HSSC Biology questions MCQs. Solved Chapterwise Biology MCQs for first-year 11 class MCQs. Second-year and first-year bio textbooks chapter-wise MCQs with the answer are provided here. PakLearningSpot PLS MCQs Bank website for FREE Entry test preparations
Exchange of segments between homologous chromosomes is called:
UHS 2012
Biology
Cell Cycle
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Crossing over takes place during _____ of meiosis.
UHS 2018
Biology
Cell Cycle
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Synthesis of microtubules increases in:
UHS 2018
Biology
Cell Cycle
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Most critical phase of mitosis is
Which of the following is NOT true for meiosis?
NUMS 2019 Reconduct
Biology
Cell Cycle
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The term bivalent means:
NUMS 2014
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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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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Which statement is incorrect?
DNA is synthesized and chromosome number is doubled in
Asexual offsprings can be produced by:
PMC 2021 Tested
Biology
Cell Cycle
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Period between two consecutive divisions is called
Which of the following sub stages does not occur in prophase I?
NTS 2015 SMBBMC
Biology
Cell Cycle
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Smooth endoplasmic reticulum is responsible for the metabolism of:
UHS 2019
Biology
Cell Cycle
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Interphase is a phase of the cell cycle defined only by the absence of _______.
NTS 2019
Biology
Cell Cycle
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Meiosis occurs at the time of
Reverse of prophase is
Spread of tumor cells and establishment of secondary areas of growth is
Diplotene is the sub-stage of:
NTS 2011
Biology
Cell Cycle
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_______ is the most critical phase of mitosis.
NUMS 2015
Biology
Cell Cycle
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A special area of centromere with specific base arrangement and specific proteins where spindle fibers are attached is called
Gametes are produced by:
PMC 2021 Tested
Biology
Cell Cycle
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Meiosis occur in
Gametes in animals are produced by:
PMC 2021 Tested
Biology
Cell Cycle
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How does the second meiotic division differ from mitosis? In the second meiotic division:
NTS 2015 SMBBMC
Biology
Cell Cycle
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Failure of separation of sister chromatids is called:
NUMS 2020
Biology
Cell Cycle
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Crossing over occur between ____________ of homologous chromosomes:
PMC Sample 1
Biology
Cell Cycle
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Synaptonemal complex helps in:
NUMS 2014
Biology
Cell Cycle
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Bac
In gametogenesis, which resultant product is non-functional?
NTS 2019
Biology
Cell Cycle
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Which statement is not true about phragmoplast?
During anaphase, each chromosome has:
PMC 2021 Tested
Biology
Cell Cycle
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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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Feature of cancer cells in common?
Mitosis occurs in
Which of the following statements concerning nucleolus is correct?
NTS 2014
Biology
Cell Cycle
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Mitotic apparatus in animals is formed by
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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At what phase the DNA content of a cell is doubled?
PMC 2020
Biology
Cell Cycle
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Microtubules are composed of
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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Reduction division is:
NUMS 2015
Biology
Cell Cycle
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Condensation of chromosomes reaches to the maximum during:
NUMS 2015
Biology
Cell Cycle
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Interphase of meiosis lacks
Which of the following cells does not enter G0 phase?
NUMS 2020
Biology
Cell Cycle
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Each kinetochore gets ________ fibers in mitosis
Which is a feature of malignant tumor?
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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From each pair of centrioles ________ sets of microtubules originate
Process of uncontrolled cell division is due to which one of the following reasons?
NUMS 2018
Biology
Cell Cycle
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In case of neurons, post mitotic cell escapes cell cycle and remain in _______ phase whthout proliferating further
During which stage of meiosis do centromeres divide?
NTS 2016 DUHS & JSMU
Biology
Cell Cycle
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In which stage of meiotic division centromere divides?
NUMS 2017
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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Which of the following statements is true about metaphase?
PMC 2021 Tested
Biology
Cell Cycle
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In plants mitotic apparatus consists of
The phase of mitosis in which sister chromatids move towards opposite poles:
UHS 2019
Biology
Cell Cycle
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During meiosis, the homologous chromosomes come together and form pairs, this process is called:
PMC 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 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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Gametes in animals are produced by which of the following?
PMC Practice 2
Biology
Cell Cycle
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During the G2 phase:
UHS 2019
Biology
Cell Cycle
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In meiosis II, ______ differentiate into sperms.
NUMS 2019 Reconduct
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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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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