The synapsed homologous chromosomes form

  •       Tetrad

  •       Bivalent

  •       Both A and B

  •      Diad

Bivalent is clearly visible at which stage?

  •       Pachytene

  •       Leptotene

  •       Zygotene

  •      Diplotene

Which of the following is the shortest phase among the following?

  •       Prophase l

  •       Zygotene

  •       Pachytene

  •      Both A and B

The appearance of recombination nodule is  a characteristic feature of

  •       Pachytene

  •       Zygotene

  •       Diplotene

  •      Diakinesis

Recombination nodules are

  •       Sites over sister chromatids

  •       Sites over non-sister chromatids

  •       Sites over homologous chromosomes

  •      Sites over non-homologous chromosomes

Which of the following is an enzyme-mediated process?

  •       Crossing over

  •       Synapsis

  •       Leptotene

  •      Both A and B

The dissolution of the synaptonemal complex is the recognition event of

  •       Ending of pachytene

  •       Beginning of diplotene

  •       Beginning of Diakinesis

  •      Ending of Diplotene

Chromosomes are fully condensed and the meiotic spindle is assembled to prepare the homologous chromosomes for separation. This is a characteristic feature of which of the following option

  • Diplotene

  • Diakinesis

  • Prophase

  • Metaphase

The separation of homologous chromosomes while attachment of sister chromatids remain associated at their centromere is a characteristic feature of which of the following

  • Diplotene

  • Pachytene

  • Anaphase I

  • Anaphase

What does result in dyad of cells?

  • Telophase II

  • TelophaseI

  • Cytokinesis I

  • Meiosis II

The stage between two meiosis is

  • Cytokinesis

  • Interkinesis

  • Interphase I

  • Interphase

Prophase II

  • Simpler than Prophase but complex than Prophase I

  • Complex than Prophase I

  • Simpler than Prophase I

  • All of these

When does Prophase II start usually?

  • Chromosomes are fully elongated

  • Before chromosomes are fully condensed

  • Before chromosomes are fully elongated

  • After chromosomes are fully elongated

By the end of Prophase II, chromosomes become

  • Compact

  • Loose

  • Elongated

  • Decondensed

Which of the following phases is equivalent to Prophase II?

  • Prophase

  • Prophase I

  • Metaphase

  • Mitosis

Which of the following phases is equivalent to Metaphase II?

  • Metaphase

  • Metaphase I

  • Diplotene

  • Interkinesis

Which of the following phases is equivalent to Anaphase II?

  • Anaphase

  •     Metaphase I

  • Interkinesis

  • Prophase

Simultaneous splitting of the centromeres of each chromosome occur in

  • Anaphase I

  • Anaphase II

  • Metaphase

  • Prophase II

The motion of sister Chromatids toward opposite poles of the cell occurs by

  •  Shortening of microtubules attached to kinetochores

  •  Shortening of microtubules attached to centromere

  •  Shortening of microtubules attached to Metaphase plate

  •  Shortening of microtubules attached to other homologous chromosomes

Tetrad of cells is a result of

  • Meiosis I

  • Meiosis II

  • Mitosis

  • Prophase II

How many tetrads are found in meiotic Prophase in an organism with a diploid number of 12?

  • 6

  • 18

  • 24

  • 12

A particular cell has half as much DNA as some of the other cells in a mitotically active tissue, the cell most likely be in

  • G1

  • G2

  • Prophase

  • Anaphase

Fruit flies have a diploid number of chromosomes of eight, how many chromosomes will be there in the tetrad of cells?

  • 4

  • 8

  • 16

  • Both A and B

Which of the following events occur first in Meiosis?

  • Terminalisation

  • Crossing over

  • Disjunction

  • Synapsis

Which of the following events occurs in the end, in Meiosis?

 

  • Terminalisation

  • Crossing over

  • Disjunction

  • Synapsis

The number of chromosomes becomes half at which of the following stages?

  • Synapsis of chromosomes

  • Crossing over between chromosomes

  • Terminalisation of chromosomes

  • Disjunction of chromosomes

The cell plate is laid during

  • Metaphase

  • Interphase

  • Cytokinesis

  • Telophase

If at the end of meiosis a cell has 12 chromosomes, then how many chromosomes will be there in G2 phase?

  • 12

  •   24

  • 6

  • Cannot be predicted

If at the end of mitosis a cell has 12 chromosomes, then how many chromosomes will be there in S phase?

  • 12

  • 6

  • 24

  • Cannot be predicted

What will be the number of the kinetochore in 2 bivalents?

  •  

  • 1.4

  • 2.2

  • 3.1

  • 4.8

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