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Point of attachment of chromosomal fibre...

Point of attachment of chromosomal fibre of spindle is kinetochore/centromere.

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### Step-by-Step Solution: 1. **Understanding the Components**: - The question asks about the point of attachment of the chromosomal fiber of the spindle. - The two terms mentioned are "kinetochore" and "centromere". 2. **Identifying the Centromere**: - The centromere is a specialized region of DNA that links a pair of sister chromatids together. ...
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Site of attachment of spindle fibres in chromosome lies

Give difference in the attachment of chromosomes to the spindle fibres in mitosis and meiosis-I

Knowledge Check

  • The region of the attachment of chromosome to spindle fibers is called

    A
    Centromere
    B
    Centriole
    C
    Chromonemata
    D
    Centrosome

  • Kinetochores of a chromosome are

    A
    Disc shaped proteinaceous structure present at the centromere
    B
    Present near secondary constriction
    C
    Distributed all over the length of the chromosomes
    D
    Beaded string like structures

  • Assertion: Small disc-shaped structures at the surface of the centromeres are called kinetochores. Reason: Kinetochores serve as the sites of attachement of spindle fibres to the centreomeres.

    A
    If both assertion and reason are true and reason is the correct explantion of assertion
    B
    If both assertion and reason are true but reason is not the correct explnantion of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

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    Answer the following questions regarding the events carried out in the labelled parts of the ab ove given diagram. (1) DNA synthesis occurs in (2) Condenstaion of chromosomal material takes place in (3) Attachement of spindle fibres to kinetochores of chromosomes during (4) Initiation of the assembly of mitotic spindle during (5). Splitting of centromere and separation of chromatids in (6) Movement of chromatids to opposite poles during (7) Reformation of nucleolus, Golgi complex and ER occurs in (8) Alignment of chromosomes along metaphase plate during (9) During of cytoplasm during (10) Preparation of cell division takes place during.

    Spindle fibres attach on to

    Spindle fibres attach on to

    Spindle fibres attach on to

    Spindle fibers attach on to

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