Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:

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

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 76%
From NCERT
NEET - 2020
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In a mitotic cycle, the correct sequence of phases is

1. S, G1, G2, M

2. G1, S, G2, M

3. M, G1, G2, S

4. G1, G2, S, M

Subtopic:  Intro to Cell Cycle & Interphase |
 90%
From NCERT
NEET - 2020
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During Meiosis 1, in which stage synapsis takes place?

1. Pachytene 2. Zygotene
3. Diplotene 4. Leptotene
Subtopic:  Cell Cycle: Meiosis I |
 83%
From NCERT
NEET - 2020
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Match the following events that occur in their respective phases of cell cycle and select the correct option:

Column I Column II
(a) G 1 phase  (i) Cell grows and organelle duplication
(b) S phase  (ii) DNA replication and chromosome duplication
(c) G 2 phase      (iii) Cytoplasmic growth
(d) Metaphase in M-phase    (iv) Alignment of chromosomes
 
Options: (a) (b) (c) (d)
1. (ii) (iii) (iv) (i)
2. (iii) (iv) (i) (ii)
3. (iv) (i) (ii) (iii)
4. (iii) (ii) (i) (iv)
Subtopic:  Intro to Cell Cycle & Interphase |
 87%
From NCERT
NEET - 2020
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Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.
1.  Metaphase-II
2.  Anaphase-I
3.  Anaphase-II
4.  Metaphase-I

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 79%
From NCERT
AIPMT - 2012
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At metaphase, chromosomes are attached to the spindle fibres by their:
1. Centromere
2. Satellites
3. Secondary constrictions
4. Kinetochores

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 91%
From NCERT
AIPMT - 2011
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Centromere is required for:

1. Movement of chromosomes toward poles

2. Cytoplasmic cleavage

3. Crossing over

4. Transcription

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 84%
From NCERT
AIPMT - 2005
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What occurs in crossing over:
1.  Recombination
2.  Mutation
3.  Independent assortment
4.  None

Subtopic:  Cell Cycle: Meiosis I |
 94%
From NCERT
AIPMT - 1998
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Crossing over that results in genetic recombination in higher organisms occurs between:
1. Non-sister chromatids of a bivalent
2. Two daughter nuclei
3. Two different bivalents
4. Sister chromatids of a bivalent

Subtopic:  Cell Cycle: Meiosis I |
 88%
From NCERT
AIPMT - 2004
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In the somatic cell cycle:
 

1. DNA replication takes place in S-phase
2. A short interphase is followed by a long mitotic phase
3. \(G_2\) phase follows the mitotic phase
4. In  the \(G_1\) phase, DNA content is double the amount of DNA present in the original cell
Subtopic:  Intro to Cell Cycle & Interphase |
 88%
From NCERT
AIPMT - 2004
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