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) |
 78%
From NCERT
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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 |
 67%
From NCERT
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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 |
 59%
From NCERT
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Plant cells do not divided their cytoplasm by forming a furrow in cell membrane like animal cells rather they divide by cell plate because

(1) Plant cell do not have centrioles

(2) Cell wall formation beings with formation of cell plate

(3) Cell plate represents middle lamella between the walls of two adjacent cells

(4) Plant cells are enclosed by a relatively inextensible wall

Subtopic:  Cell Division: Mitosis (Cytokinesis) |
 53%
From NCERT
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The end of which of the following mark's completion of Mitosis?

1. Cytokinesis

2. Karyokinesis

3. Interkinesis

4. Telophase

Subtopic:  Cell Division: Mitosis (Cytokinesis) |
 75%
From NCERT
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The furrow gradually deepens and ultimately joins in the centre dividing the cell cytoplasm into two. Here, the cell is

(1) Animal cell

(2) Plant cell

(3) Both A and B

(4) Only Root tip cells

Subtopic:  Cell Division: Mitosis (Cytokinesis) |
 88%
From NCERT
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When does Prophase II start usually?

(1) Chromosomes are fully elongated

(2) Before chromosomes are fully condensed

(3) Before chromosomes are fully elongated

(4) After chromosomes are fully elongated

Subtopic:  Cell Cycle: Meiosis II |
From NCERT
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By the end of Prophase II, chromosomes become

(1) Compact

(2) Loose

(3) Elongated

(4) Decondensed

Subtopic:  Cell Cycle: Meiosis II |
 66%
From NCERT
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Which of the following statements is True?
(1) Cell plate represents the middle lamella between the walls of two adjacents cells

(2) At the time of cytokinesis, organelles like mitochondria and plastids get distributed between the daughter cells

(3) Cytokinesis in plant cell is centrifugal and takes place by cell-plate formation while animal cells by furrowing / cleavage and is centripetal

(4) All are correct

Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
 89%
From NCERT
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Which of the following is not true for sister chromatids?

(1) They arise by replication during S phase

(2) They segregate from each other during each mitotic anaphase

(3) The usually contain identical versions of the same genetic information

(4) They segregate from each other during meiosis I

Subtopic:  Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
 66%
From NCERT
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