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    science
    Grade-10
    Easy

    Question

    What is the name of part 1 in the given image?

    1. Sister chromatids
    2. Chromatids
    3. Telomere
    4. Centromere

    Hint:

    The constricted portion of a chromosome where spindle fibers attach during cell division.

    The correct answer is: Centromere

      • Centromere is the constricted portion of a chromosome
      • Sister chromatids formed during cell division are attached to one another at centromere
      • During cell division, the spindle fibers attach to the centromere and contract causing the sister chromatids to separate
      • Based on the position of centromere, the chromosomes can be divided into metacentric, acrocentric, submetacentric and telocentric
      • The part attached to the centromere are called the arm(s) of a chromosome

      Related Questions to study

      Grade-10
      science

      Observe the image and select the answer.

      1. Homologous chromosomes
      2. Non-homologous chromosomes
      3. Homologous centromere
      4. Non-homologous centromere

      Observe the image and select the answer.

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      1. Homologous chromosomes
      2. Non-homologous chromosomes
      3. Homologous centromere
      4. Non-homologous centromere
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      A cell with ‘n’ number of chromosomes is called as _________.

      1. Haploid cell
      2. Diploid cell
      3. Triploid cell
      4. Cell

      A cell with ‘n’ number of chromosomes is called as _________.

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      1. Haploid cell
      2. Diploid cell
      3. Triploid cell
      4. Cell
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      _________ is the way animal produces the same offspring.

      1. Nutrition
      2. Circulation
      3. Excretion
      4. Reproduction

      _________ is the way animal produces the same offspring.

      scienceGrade-10
      1. Nutrition
      2. Circulation
      3. Excretion
      4. Reproduction
      parallel
      Grade-10
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      Which of the following statement is correct?

      1. Reproduction does not occur at the cellular level.
      2. Reproduction occur at the cellular level.
      3. Reproduction occur at the tissue level.
      4. All the above.

      Which of the following statement is correct?

      scienceGrade-10
      1. Reproduction does not occur at the cellular level.
      2. Reproduction occur at the cellular level.
      3. Reproduction occur at the tissue level.
      4. All the above.
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      Which of the following is the characteristic feature of a living thing?

      1. They do not require food
      2. They reproduce
      3. They cannot move
      4. They need only water

      Which of the following is the characteristic feature of a living thing?

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      1. They do not require food
      2. They reproduce
      3. They cannot move
      4. They need only water
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      Select the incorrect statement.

      1. The first part of the mitotic stage is called karyokinesis.
      2. The second part is called cytokinesis.
      3. Mitosis is useful to remove damaged cells.
      4. During telophase, the sister chromatids are arranged in the center of the cell.

      Select the incorrect statement.

      scienceGrade-10
      1. The first part of the mitotic stage is called karyokinesis.
      2. The second part is called cytokinesis.
      3. Mitosis is useful to remove damaged cells.
      4. During telophase, the sister chromatids are arranged in the center of the cell.
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      Mitosis is the method by which eukaryotic cells

      1. produce genes for protein synthesis
      2. Become specialized in structure 
      3. Grow
      4. Multiply

      Mitosis is the method by which eukaryotic cells

      scienceGrade-10
      1. produce genes for protein synthesis
      2. Become specialized in structure 
      3. Grow
      4. Multiply
      Grade-10
      science

      Mitosis_______.

      1. Results in reduction of chromosome numbers.
      2. Results in doubling the number of chromosomes.
      3. Results in the same number of chromosomes.
      4. Results in no change in chromosome numbers.

      Mitosis_______.

      scienceGrade-10
      1. Results in reduction of chromosome numbers.
      2. Results in doubling the number of chromosomes.
      3. Results in the same number of chromosomes.
      4. Results in no change in chromosome numbers.
      Grade-10
      science

      Chromosome shape can be seen best through ____

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

      Chromosome shape can be seen best through ____

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      1. Anaphase
      2. Prophase
      3. Metaphase
      4. Telophase
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      DNA is primarily situated in_________.

      1. Vacuole
      2. Brain of the cell
      3. Cytoplasm and vacuole
      4. All of the above

      DNA is primarily situated in_________.

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      1. Vacuole
      2. Brain of the cell
      3. Cytoplasm and vacuole
      4. All of the above
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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______.

      scienceGrade-10
      1. Indian word
      2. Latin word
      3. French word
      4. Greek word
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      Cytokinesis starts in ______.

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

      Cytokinesis starts in ______.

      scienceGrade-10
      1. Metaphase
      2. Telophase
      3. Prophase
      4. Anaphase 
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      ______ occurs after metaphase

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

      ______ occurs after metaphase

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      1. Anaphase
      2. Telophase
      3. Prophase
      4. Metaphase
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      _____ is not a stage of mitosis.

       

      1. Leptotene
      2. Zygotene
      3. Pachytene
      4. All of these 

      _____ is not a stage of mitosis.

       

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      1. Leptotene
      2. Zygotene
      3. Pachytene
      4. All of these 
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