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What three things happen during telophase II?

Important Questions on Genetics and Evolution (AHL)

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During meiosis I, in which stage synapsis takes place?
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The enzyme recombinase is required at which stage of meiosis:
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Dissolution of the synaptonemal complex occurs during
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Match the changes which occur in the chromosomes during meiosis, with the different phases of prophase-I.

   List - I     List - II
(a) Pachytene (i) Compaction of chromosomes
(b) Zygotene (ii) Terminalisation of chiasmata
(c) Diplotene (iii) Pairing of chromosomes
(d) Leptotene (iv) Dissolution of synaptonemal complex
    (v) Recombination nodule

The correct answer is

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Select the correct option:
 
  I   II
(a) Synapsis aligns homologous chromosomes (i) Anaphase – II
(b) Synthesis of RNA and protein (ii) Zygotene
(c) Action of enzyme recombinase (iii) G2 – phase
(d) Centromeres do not separate but chromatids move towards opposite poles (iv) Anaphase – I
    (v) Pachytene
MEDIUM

Arrange the following statements on meiosis in a correct sequence.
A) Terminalisation of chiasmata.
B) Dissolution of synaptonemal complex.
C) Homologous chromosome separation.
D) Appearance of recombination nodules.
E) Pairing of homologous chromosomes.
F) Disappearance of nuclear envelope.

MEDIUM

Match the following with respect to meiosis

(a) Zygotene (i) Terminalization
(b) Pachytene (ii) Chiasmata
(c) Diplotene (iii) Crossing over
(d) Diakinesis (iv) Synapsis

Select the correct option from the following

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The correct sequence of events in prophase I is:
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Match the stages of meiosis of Column-I to their characteristic features in Column-II and select the correct option using the codes given below:
 
Column-I Column–II
a. Pachytene (i) The pairing of homologous chromosomes
b. Metaphase I (ii) Terminalization of chiasmata
c. Diakinesis (iii) Crossing-over takes place
d. Zygotene (iv) Chromosomes align at the equatorial plate
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Meiosis I and Meiosis II are characterised by the separation of:
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Assertion (A): In crossing over, the exchange of genetic material between two homologous chromosomes occur during both mitotic and meiotic cell divisions.

Reason (R): The process of crossing over is only possible and is mediated by recombinase.

The correct answer is:

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In meiosis, crossing over is initiated at _________.
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In prophase I of meiosis, synaptonemal complex is formed between
I) Pair of homologous chromosomes
II) Tetrad of chromatids
III) Bivalent chromosomes
IV) Recombination modules of non sister chromatids
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Identify the event in meiosis mediated by the enzyme recombinase.
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Number of bivalents, chromatid tetrads, DNA strands, telomers present in pachytene phase of meiocyte of Maize
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Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature?
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After meiosis-II, daughter cells differ from the parent cells and each other in their genotypes. This can occur because of which one of the following mechanism (s)?
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Arrange the following events of meiosis in the correct sequence:

i. Crossing over

ii. Synapsis

iii. Terminalisation of chiasmata

iv. Disappearance of the nucleolus
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Which of the following stages of meiosis involves division of centromere?