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    science
    Grade-10
    Easy

    Question

    What does ‘S’ represent in the diagram?

    1. Synthesis of organelle
    2. Synthesis of DNA
    3. Synthesis of plasma membrane
    4. None of these

    Hint:

    The biological material made up of nucleic acids.

    The correct answer is: Synthesis of DNA

      • S phase or synthetic phase marks the preparatory phase before cell division
      • The DNA replicates and makes a copy during this phase
      • S phase is also called interphase
      • S phase is followed by prophase ((where actual division of cell starts)

      Related Questions to study

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      In mitosis, the copy of chromosomes appears during

      1. Early prophase
      2. Late prophase
      3. Interphase
      4. Late telophase

      In mitosis, the copy of chromosomes appears during

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      2. Late prophase
      3. Interphase
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      In ______ process of mitosis can be studied.

      1. Anther
      2. Stigma
      3. Root tip.
      4. All of these

      In ______ process of mitosis can be studied.

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      1. Anther
      2. Stigma
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      Which of the following statement is correct?

      1. Ratio of surface area to volume controls the cell size.
      2. Ratio of length to height controls the cell size.
      3. Ratio of surface area to size controls the cell size.
      4. None of these

      Which of the following statement is correct?

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      1. Ratio of surface area to volume controls the cell size.
      2. Ratio of length to height controls the cell size.
      3. Ratio of surface area to size controls the cell size.
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      ________are repetitive stretches of DNA present at the ends of linear chromosomes.

      1. Pores
      2. Hexomere
      3. Telomeres  
      4. Monomers

      ________are repetitive stretches of DNA present at the ends of linear chromosomes.

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      1. Pores
      2. Hexomere
      3. Telomeres  
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      Which phase of mitosis is shown in the picture given below?

      1. Prophase
      2. Anaphase
      3. Metaphase
      4. Telophase

      Which phase of mitosis is shown in the picture given below?

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      1. Prophase
      2. Anaphase
      3. Metaphase
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      Membrane bound nucleus is present in ___________.
       

      1. Archae
      2. Bacteria
      3. Animal cell
      4. None of the above

      Membrane bound nucleus is present in ___________.
       

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      1. Archae
      2. Bacteria
      3. Animal cell
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      Which stage comes between prophase and telophase?

      1. Leptotene
      2. Zygotene
      3. Pachytene
      4. Anaphase

      Which stage comes between prophase and telophase?

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      1. Leptotene
      2. Zygotene
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      What will happen if the nucleus is removed from the cell?

      1. The metabolism of cell will decrease.
      2. The metabolism of cell will increase.
      3. The cell will stop working.

      4. The cell will be very active.

      What will happen if the nucleus is removed from the cell?

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      2. The metabolism of cell will increase.
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      4. The cell will be very active.

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      Amount of ________ is less in the chromosome and more in the nucleus.

      1. RNA
      2. Histone protein
      3. Non histone proteins
      4. DNA

      Amount of ________ is less in the chromosome and more in the nucleus.

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      2. Histone protein
      3. Non histone proteins
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      In a cell, nucleoprotein is synthesized in________.

      1. Nucleoplasm
      2. Lipids
      3. Outside the nucleolus
      4. Nuclear membrane

      In a cell, nucleoprotein is synthesized in________.

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      1. Nucleoplasm
      2. Lipids
      3. Outside the nucleolus
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      ________ regulates the physiological activities of the cell.

      1. Nucleus
      2. Mitochondria
      3. Plastids
      4. Vacuoles

      ________ regulates the physiological activities of the cell.

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      2. Mitochondria
      3. Plastids
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      DNA is primarily situated in_________.

      1. Vacuole
      2. Brain of the cell
      3. Cytoplasm and vacuole
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      DNA is primarily situated in_________.

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      2. Brain of the cell
      3. Cytoplasm and vacuole
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      There are _____ pairs of chromosomes in humans.

      1. 24
      2. 23
      3. 42
      4. 46

      There are _____ pairs of chromosomes in humans.

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      1. 24
      2. 23
      3. 42
      4. 46
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      The word chromosome comes from______.

      1. Indian word
      2. Latin word
      3. French word
      4. Greek word

      The word chromosome comes from______.

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      1. Indian word
      2. Latin word
      3. French word
      4. Greek word
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      Which of the following content is correct?

      1. Chromosomes present in the form of threads of DNA and protein molecules is called chromatin.
      2. The heterochromatin is highly dense.
      3. Euchromatin is mild, less condensed.
      4. All of these

      Which of the following content is correct?

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      1. Chromosomes present in the form of threads of DNA and protein molecules is called chromatin.
      2. The heterochromatin is highly dense.
      3. Euchromatin is mild, less condensed.
      4. All of these
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