Cellular structures which disappear during late prophase and reappear during telophase are:

(1) Mitochondria and spindle fibres   

(2) Plasma membrane

(3) Nuclear membrane and nucleolus 

(4) Plastid

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Given:
1. Chromatid                                    2. Monad
3. Dyad                                            4. Daughter chromosome
The correct sequence in cell division is:
(a) 1, 2, 3, 4               (b) 2, 3, 1, 4              (c) 3, 2, 1, 4              (d) 4, 3, 2, 1

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Cytokinesis in animal cell takes place by _______; in _______ direction while in plant cell by _______; in _______ direction:

(1) Furrowing, centrifugal, cell plate, centripetal

(2) Furrowing, centripetal, cell plate, Centrifugal

(3) Cell plate, centrifugal, furrowing, centripetal

(4) Cell plate, centripetal, furrowing, centrifugal

Subtopic:  Cell Division: Mitosis (Cytokinesis) |
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Liquid endosperm in coconut is resulted due to:

(1) Karyokinesis followed by cytokinesis

(2) Failure of karyokinesis followed by cytokinesis

(3) Karyokinesis twice followed by single cytokinesis

(4) Karyokinesis is not followed by cytokinesis

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Label the structure indicated by lines (i), (ii), (iii) and (iv):

(1) (i) - Chromatid, (ii) Centriole, (iii) Centromere, (iv) Chromosome

(2) (i) - Chromomosome, (ii) Centriole, (iii) Centromere, (iv) Chromatid

(3) (i) - Chromatid, (ii) Centromere, (iii) Centriole, (iv) Chromosome

(4) (i) - Chromomosome, (ii) Centromere, (iii) Centriole, (iv) Chromatid

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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The members of a homologous pair of chromosomes:

(1) Are identical in size and appearance

(2) Contain identical genetic information

(3) Separate to opposite poles of the cell during mitosis

(4) Are found only in haploid cells

Subtopic:  Cell Cycle: Meiosis I |
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One difference between mitosis and meiosis I is that:

(1) Homologous chromosome pairs synapse during mitosis

(2) Chromosome do not replicate in the interphase preceding meiosis

(3) Homologous chromosomes pairs synapse during meiosis but not mitosis

(4) Spindle composed of microtubules are not required during meiosis

Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I |
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Chromosome number is reduced during meiosis because the process consists of:

(1) Two cell divisions without any chromosome replication

(2) A single cell division without any chromosome replication

(3) Two cell divisions in which half of the chromosomes are destroyed

(4) Two cell divisions and only a single round of chromosome replication

Subtopic:  Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
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Which of the following is false?
(1) The mitotic spindle is composed of microtubules

(2) In plant cells, cytokinesis is accomplished by the formation of a cell plate

(3) The distribution of mitochondria between the daughter cells during cytokinesis is random

(4) Chromatin condenses to form discrete, visible chromosomes early in G1

Subtopic:  Intro to Cell Cycle & Interphase |
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A reduction step during meiosis is important because:

(1) It returns the chromosome number to normal before fertilization

(2) There is a mechanism for this

(3) Only one copy of each chromosome is necessary

(4) Otherwise chromosome copies would double each fertilization

Subtopic:  Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
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