What is the function of the spindle fibres? -Biology

1 Answer

Answer :

Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.

Related questions

Description : What are spindle fibres? -Biology

Last Answer : Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during ... division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.

Description : What organelles produce spindle fibres? -Biology

Last Answer : Centrioles produce spindle fibers in animal cells. These spindle fibers are active during mitosis when the DNA has replicated and the chromosomes are pulled apart during anaphase. Plants cells do not have centrioles but they still undergo mitosis.

Description : Centrioles are present only in animals. In such a case how the spindle fibres are held in the cell division of plants? -Biology

Last Answer : answer:

Description : Assertion :- Each chromatid is attached with two spindle fibres during S-phase :- Reason :- During Anaphse-I each chromosome is found in bivalent form

Last Answer : Assertion :- Each chromatid is attached with two spindle fibres during S-phase :- Reason :- During ... . D. If both Assertion & Reason are false.

Description : Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of attachment of spindle fibres to the chromosome.

Last Answer : Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of ... D. If both Assertion & Reason are false.

Description : At metaphase, chromosmes are attached to the spindle fibres by their

Last Answer : At metaphase, chromosmes are attached to the spindle fibres by their A. Centromere B. Satellites C. Secondary cnstrictions D. Kinetochores

Description : Part of Chromosome which joins with spindle fibres is -

Last Answer : Part of Chromosome which joins with spindle fibres is - A. Chromatid B. Chromonema C. Chromomere D. Centromere

Description : In animal cell xhich structure is thougth to produce the spindle fibres that help separate the sister chromatids during anaphase?

Last Answer : What is the answer ?

Description : Stretch reflex: a. is a monosynaptic reflex with a response time of 1 msec b. originates in the muscle spindle which sends off impulses in type Ia nerve fibres c. is intensified by impulses in the gamma efferent fibres d. all above

Last Answer : all above

Description : Synapsis occurs between (a) mRNA and ribosomes (b) spindle fibres and centromere (c) two homologous chromosomes (d) a male and a female gamete.

Last Answer : (c) two homologous chromosomes

Description : At metaphase, chromosomes are attached to the spindle fibres by their (a) satellites (b) secondary constrictions (c) kinetochores (d) centromeres.

Last Answer : (c) kinetochores

Description : During the metaphase stage of mitosis, spindle fibres attach to chromosomes at (a) kinetochore (b) both centromere and kinetochore (c) centromere, kinetochore and areas adjoining centromere (d) centromere.

Last Answer : a) kinetochore

Description : Which of the following is not a characteristic feature during mitosis in somatic cells? (a) Chromosome movement (b) Synapsis (c) Spindle fibres (d) Disappearance of nucleolus

Last Answer : (b) Synapsis

Description : Spindle fibres attach on to (a) centromere of the chromosome (b) kinetosome of the chromosome (c) telomere of the chromosome (d) kinetochore of the chromosome.

Last Answer : (d) kinetochore of the chromosome.

Description : Microtubules are absent in (a) mitochondria (b) flagella (c) spindle fibres (d) centrioles.

Last Answer : (a) mitochondria

Description : Microtubules are the constituents of (a) centrioles, spindle fibres and chromatin (b) centrosome, nucleosome and centrioles (c) cilia, flagella and peroxisomes (d) spindle fibres, centrioles and cilia.

Last Answer : (d) spindle fibres, centrioles and cilia

Description : Characteristics of smooth muscle fibres are (a) spindle-shaped, unbranched, nonstriated, uninucleate and involuntary (b) spindle-shaped, unbranched, unstriped, multinucleate and involuntary (c ... , multinucleate and involuntary (d) cylindrical, unbranched, striated, multinucleate and voluntary.

Last Answer : (a) spindle-shaped, unbranched, nonstriated, uninucleate and involuntary

Description : What is the function of the spindle apparatus?

Last Answer : A: The spindle apparatus is responsible for separating the chromosomes during cell division.

Description : What are Purkinje fibers? What is the function of the Purkinje fibres? -Biology

Last Answer : answer:

Description : What is the function of xylem fibres. -Biology

Last Answer : The xylem is the vascular tissue responsible for the upward conduction of water and nutrients from the roots. The xylem tissue moves water and nutrients to various parts of the plant such as shoots and leaves. Its major components include xylem parenchyma, xylem fibers, tracheids, and xylem vessels

Description : Phloem fibres function? -Biology

Last Answer : Bast fibre (also called phloem fibre or skin fibre) is plant fibre collected from the phloem (the "inner bark", sometimes called "skin") or bast surrounding the stem of certain dicotyledonous plants. They support the conductive cells of the phloem and provide strength to the stem.

Description : State the function of muscle fibres.

Last Answer : Muscle fibres or myofibres are specialized cells capable of contraction and relaxation that is responsible for movement of limbs, bending of the body, movement of internal organs like heart, stomach and alimentary canal.

Description : State the function of a) sieve tubes b) sieve plate c) companion cells d) phloem fibres.

Last Answer : a) Sieve tubes: They play an important role in the conduction of food. b) Sieve plate: It allows the food to pass through the pores. c) Companion cells: They control the passage of food through the phloem. d) Phloem fibres: They provide tensile strength to the plant body.

Description : The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its ... Smooth Heart Heart muscle contraction tissue (d) (A) Columnar Nephron Secretion epithelium and absorption

Last Answer : (a) (B) Glandular Intestine Secretion epithelium

Description : The positive inotropic action of digoxin takes several hours to develop because: A. Binding of digoxin to Na+K+ATPase is slow B. After Na+K+ATPase inhibition by digoxin, Ca2+ loading of myocardial ... +ATPase through modification of gene function which takes time D. Both A' and B' are correc

Last Answer : D. Both ‘A’ and ‘B’ are correct

Description : Which machine's spindle is used to horizontal work? a.UMC b.VMC c.HMC d.DNC

Last Answer : c.HMC

Description : Maximum spindle speed limitation code in CNC Machine a.G90 b.G91 c.G92 d.G93

Last Answer : c.G92

Description : In CNC Program M03 is refer to…… a.Spindle ON in Clockwise rotation b.Spindle ON in Counter Clockwise rotation c.Spindle OFF in Clockwise rotation d.Spindle OFF in Counter Clockwise rotation

Last Answer : a.Spindle ON in Clockwise rotation

Description : Rotation of spindle is designated by one of the following axis: a.a-axis b.b-axis c.c-axis d.none of the mentioned

Last Answer : d.none of the mentioned

Description : Match the following: NC code DefinitionP. M05 1. Absolute coordinate system Q. G01 2. Dwell R. G04 3. Spindle stop S. G09 4. Linear interpolation a.P-2, Q-3, R-4, S-1 b.P-3, Q-4, R-1, S-2 c.P-3, Q-4, R-2, S-1 d.P-4, Q-3, R-2, S-1

Last Answer : c.P-3, Q-4, R-2, S-1

Description : Spindle whorls were used to ……………. -Social Science

Last Answer : answer:

Description : Archaeologists have found spindle wheels, made of terracotta and …………………. -Social Science

Last Answer : answer:

Description : At what stage of mitosis is the spindle device formed ?

Last Answer : Answer : The spindle instrument is formed in the pro-metaphase stage of mitosis.

Description : What is a spindle device ?

Last Answer : In the promethaphase phase of mitosis cell division, a macula-shaped structure is formed in the cell consisting of a number of fibrous proteins. This is called spindle apparatus .

Last Answer : : In the pro-metaphase phase, a number of fibers appear extending from the north pole to the south pole of the cell. These are spider-shaped, so they are called spindle instruments. The center of ... the centiole, and the fiber that forms the two opposite poles of the cell is called spindle fiber.

Description : $ Amitosis occurs with spindle formation. ! Amitosis occurs during the formation of gametes in diploid organisms.

Last Answer : $ Amitosis occurs with spindle formation. ! Amitosis occurs during the formation of gametes in diploid organisms. ... D. If both As and R are wrong.

Description : Assertion :- In higher plants, the mitosis is termed as anastral mitosis. Reason : In higher plants, mitosis takes place without spindle fibers.

Last Answer : Assertion :- In higher plants, the mitosis is termed as anastral mitosis. Reason : In higher plants, ... . D. If both Assertion & Reason are false.

Description : During cell division, spindle fibers attach to which part of chromosome :-

Last Answer : During cell division, spindle fibers attach to which part of chromosome :- A. Primary constriction B. Sec. Constriction C. Chromomere D. Chromatid

Description : Assertion:- Centrioles are essential for mintenance of confinuity of cells in animals. Reason:- Centrioles give rise to spindle apparatus durring divi

Last Answer : Assertion:- Centrioles are essential for mintenance of confinuity of cells in animals. Reason:- Centrioles ... . If both Assertion & Reason are false.

Description : In which phase of mitosis are chromosomes lined up on the equator of the spindle?

Last Answer : Need answer

Description : What phase is when spindle fibers disappear new nucleus forms at each end of the cell?

Last Answer : Need answer

Description : In what phase spindle fibers attach to sister chromatids?

Last Answer : Need answer

Description : Do spindle fibers form in mitosis or meiosis?

Last Answer : Feel Free to Answer

Description : What organizes spindle fibers?

Last Answer : What is the answer ?

Description : What is the name of the Net-like structure formed by the spindle fibers?

Last Answer : Need answer

Description : How one division of the nucleus a new spindle forms around each group of chromosomes?

Last Answer : Need answer

Description : Colchicines prevent the spindle formation during: (a) Prophase (b) Metaphase (c) Anaphase (d) Telophase

Last Answer : Ans. ((b))

Description : Pyramid of number in a grassland/true ecosystem is: (a) Always inverted (b) Always upright (c) Both (a) and (b) (d) Spindle-shaped

Last Answer : Ans. ((b))

Description : Spindle formation takes place during

Last Answer : Ans. Metaphase 1

Description : Can the cotter joint be used to connect slide spindle and fork of valve mechanism? a) True b) False

Last Answer : a) True