230998
Chiasmatas appear in which of the following phase?
1 Zygotene
2 Diplotene
3 Pachytene
4 Diakinesis
Explanation:
B Chiasmata represent the location where crossing over has occurred. It appears in diplotene stage of prophase I. Zygotene:- Chromosomes becomes short and thick bivalents or tetrad pairs of chromosomes homologous are seen. Pachytene:- It is charactedrized by the presence of recombination nodules. Diakinesis:- Centrioles migrates to poles and spindle. fibre starts towards to form.
[Rajasthan PMT-1995]
Cell cycle and Cell Division
230920
Crossing over occurs during
1 Leptotene
2 Diplotene
3 Pachytene
4 Zygotene
Explanation:
C Crossing over occurs during pachytene stage between non-sister chromatids of a pair of homologous chromosomes. During pachytene, stage one chromatid of each homologous overlaps. Non-sister chromatids in each bivalent exchange their segments during pachytene. Diplotene is characterised by appearance of chiasma marking the locations at which crossing over has already occurred in the pachytene stage.
[VMMC-2009
Cell cycle and Cell Division
230946
Meiosis-II performs
1 Synthesis of DNA and centromere
2 Separation of sex-chromosomes
3 Separation of homologous chromosomes
4 Separation of chromatids
Explanation:
D Meiosis-II is initiated immediately after cytokinesis, usually before the chromosomes have fully elongated. In contrast to meiosis-I, meiosis-II resembles a normal mitosis. During meiosis-II in anaphase-II, the sister chromatids of the homologous pair separated and allowing them to move toward opposite poles of the cells.
[VMMC-2013]
Cell cycle and Cell Division
230918
When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
1 zygotene
2 pachytene
3 diplotene
4 diakinesis
Explanation:
B When synapsis is completed, the cell entered a stage called pachytene. During this stage bivalent chromosomes now clearly appears as tetrads. In this stage recombination between homologous chromosomes is completed by the end of pachytene, leaving the chromosomes linked at the sites of crossing over.
[CMC Vellore-2012
Cell cycle and Cell Division
230919
In which of the following stage, the chromosome is single thin and like long thread?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diakinesis
Explanation:
A Leptotene is stage in the prophase-I of meiosis In this stage chromosome appears thin and long. The leptotene stage is also known as the bouquet stage due to the specific alignment of chromosomes in the nucleus .
230998
Chiasmatas appear in which of the following phase?
1 Zygotene
2 Diplotene
3 Pachytene
4 Diakinesis
Explanation:
B Chiasmata represent the location where crossing over has occurred. It appears in diplotene stage of prophase I. Zygotene:- Chromosomes becomes short and thick bivalents or tetrad pairs of chromosomes homologous are seen. Pachytene:- It is charactedrized by the presence of recombination nodules. Diakinesis:- Centrioles migrates to poles and spindle. fibre starts towards to form.
[Rajasthan PMT-1995]
Cell cycle and Cell Division
230920
Crossing over occurs during
1 Leptotene
2 Diplotene
3 Pachytene
4 Zygotene
Explanation:
C Crossing over occurs during pachytene stage between non-sister chromatids of a pair of homologous chromosomes. During pachytene, stage one chromatid of each homologous overlaps. Non-sister chromatids in each bivalent exchange their segments during pachytene. Diplotene is characterised by appearance of chiasma marking the locations at which crossing over has already occurred in the pachytene stage.
[VMMC-2009
Cell cycle and Cell Division
230946
Meiosis-II performs
1 Synthesis of DNA and centromere
2 Separation of sex-chromosomes
3 Separation of homologous chromosomes
4 Separation of chromatids
Explanation:
D Meiosis-II is initiated immediately after cytokinesis, usually before the chromosomes have fully elongated. In contrast to meiosis-I, meiosis-II resembles a normal mitosis. During meiosis-II in anaphase-II, the sister chromatids of the homologous pair separated and allowing them to move toward opposite poles of the cells.
[VMMC-2013]
Cell cycle and Cell Division
230918
When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
1 zygotene
2 pachytene
3 diplotene
4 diakinesis
Explanation:
B When synapsis is completed, the cell entered a stage called pachytene. During this stage bivalent chromosomes now clearly appears as tetrads. In this stage recombination between homologous chromosomes is completed by the end of pachytene, leaving the chromosomes linked at the sites of crossing over.
[CMC Vellore-2012
Cell cycle and Cell Division
230919
In which of the following stage, the chromosome is single thin and like long thread?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diakinesis
Explanation:
A Leptotene is stage in the prophase-I of meiosis In this stage chromosome appears thin and long. The leptotene stage is also known as the bouquet stage due to the specific alignment of chromosomes in the nucleus .
230998
Chiasmatas appear in which of the following phase?
1 Zygotene
2 Diplotene
3 Pachytene
4 Diakinesis
Explanation:
B Chiasmata represent the location where crossing over has occurred. It appears in diplotene stage of prophase I. Zygotene:- Chromosomes becomes short and thick bivalents or tetrad pairs of chromosomes homologous are seen. Pachytene:- It is charactedrized by the presence of recombination nodules. Diakinesis:- Centrioles migrates to poles and spindle. fibre starts towards to form.
[Rajasthan PMT-1995]
Cell cycle and Cell Division
230920
Crossing over occurs during
1 Leptotene
2 Diplotene
3 Pachytene
4 Zygotene
Explanation:
C Crossing over occurs during pachytene stage between non-sister chromatids of a pair of homologous chromosomes. During pachytene, stage one chromatid of each homologous overlaps. Non-sister chromatids in each bivalent exchange their segments during pachytene. Diplotene is characterised by appearance of chiasma marking the locations at which crossing over has already occurred in the pachytene stage.
[VMMC-2009
Cell cycle and Cell Division
230946
Meiosis-II performs
1 Synthesis of DNA and centromere
2 Separation of sex-chromosomes
3 Separation of homologous chromosomes
4 Separation of chromatids
Explanation:
D Meiosis-II is initiated immediately after cytokinesis, usually before the chromosomes have fully elongated. In contrast to meiosis-I, meiosis-II resembles a normal mitosis. During meiosis-II in anaphase-II, the sister chromatids of the homologous pair separated and allowing them to move toward opposite poles of the cells.
[VMMC-2013]
Cell cycle and Cell Division
230918
When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
1 zygotene
2 pachytene
3 diplotene
4 diakinesis
Explanation:
B When synapsis is completed, the cell entered a stage called pachytene. During this stage bivalent chromosomes now clearly appears as tetrads. In this stage recombination between homologous chromosomes is completed by the end of pachytene, leaving the chromosomes linked at the sites of crossing over.
[CMC Vellore-2012
Cell cycle and Cell Division
230919
In which of the following stage, the chromosome is single thin and like long thread?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diakinesis
Explanation:
A Leptotene is stage in the prophase-I of meiosis In this stage chromosome appears thin and long. The leptotene stage is also known as the bouquet stage due to the specific alignment of chromosomes in the nucleus .
230998
Chiasmatas appear in which of the following phase?
1 Zygotene
2 Diplotene
3 Pachytene
4 Diakinesis
Explanation:
B Chiasmata represent the location where crossing over has occurred. It appears in diplotene stage of prophase I. Zygotene:- Chromosomes becomes short and thick bivalents or tetrad pairs of chromosomes homologous are seen. Pachytene:- It is charactedrized by the presence of recombination nodules. Diakinesis:- Centrioles migrates to poles and spindle. fibre starts towards to form.
[Rajasthan PMT-1995]
Cell cycle and Cell Division
230920
Crossing over occurs during
1 Leptotene
2 Diplotene
3 Pachytene
4 Zygotene
Explanation:
C Crossing over occurs during pachytene stage between non-sister chromatids of a pair of homologous chromosomes. During pachytene, stage one chromatid of each homologous overlaps. Non-sister chromatids in each bivalent exchange their segments during pachytene. Diplotene is characterised by appearance of chiasma marking the locations at which crossing over has already occurred in the pachytene stage.
[VMMC-2009
Cell cycle and Cell Division
230946
Meiosis-II performs
1 Synthesis of DNA and centromere
2 Separation of sex-chromosomes
3 Separation of homologous chromosomes
4 Separation of chromatids
Explanation:
D Meiosis-II is initiated immediately after cytokinesis, usually before the chromosomes have fully elongated. In contrast to meiosis-I, meiosis-II resembles a normal mitosis. During meiosis-II in anaphase-II, the sister chromatids of the homologous pair separated and allowing them to move toward opposite poles of the cells.
[VMMC-2013]
Cell cycle and Cell Division
230918
When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
1 zygotene
2 pachytene
3 diplotene
4 diakinesis
Explanation:
B When synapsis is completed, the cell entered a stage called pachytene. During this stage bivalent chromosomes now clearly appears as tetrads. In this stage recombination between homologous chromosomes is completed by the end of pachytene, leaving the chromosomes linked at the sites of crossing over.
[CMC Vellore-2012
Cell cycle and Cell Division
230919
In which of the following stage, the chromosome is single thin and like long thread?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diakinesis
Explanation:
A Leptotene is stage in the prophase-I of meiosis In this stage chromosome appears thin and long. The leptotene stage is also known as the bouquet stage due to the specific alignment of chromosomes in the nucleus .
230998
Chiasmatas appear in which of the following phase?
1 Zygotene
2 Diplotene
3 Pachytene
4 Diakinesis
Explanation:
B Chiasmata represent the location where crossing over has occurred. It appears in diplotene stage of prophase I. Zygotene:- Chromosomes becomes short and thick bivalents or tetrad pairs of chromosomes homologous are seen. Pachytene:- It is charactedrized by the presence of recombination nodules. Diakinesis:- Centrioles migrates to poles and spindle. fibre starts towards to form.
[Rajasthan PMT-1995]
Cell cycle and Cell Division
230920
Crossing over occurs during
1 Leptotene
2 Diplotene
3 Pachytene
4 Zygotene
Explanation:
C Crossing over occurs during pachytene stage between non-sister chromatids of a pair of homologous chromosomes. During pachytene, stage one chromatid of each homologous overlaps. Non-sister chromatids in each bivalent exchange their segments during pachytene. Diplotene is characterised by appearance of chiasma marking the locations at which crossing over has already occurred in the pachytene stage.
[VMMC-2009
Cell cycle and Cell Division
230946
Meiosis-II performs
1 Synthesis of DNA and centromere
2 Separation of sex-chromosomes
3 Separation of homologous chromosomes
4 Separation of chromatids
Explanation:
D Meiosis-II is initiated immediately after cytokinesis, usually before the chromosomes have fully elongated. In contrast to meiosis-I, meiosis-II resembles a normal mitosis. During meiosis-II in anaphase-II, the sister chromatids of the homologous pair separated and allowing them to move toward opposite poles of the cells.
[VMMC-2013]
Cell cycle and Cell Division
230918
When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
1 zygotene
2 pachytene
3 diplotene
4 diakinesis
Explanation:
B When synapsis is completed, the cell entered a stage called pachytene. During this stage bivalent chromosomes now clearly appears as tetrads. In this stage recombination between homologous chromosomes is completed by the end of pachytene, leaving the chromosomes linked at the sites of crossing over.
[CMC Vellore-2012
Cell cycle and Cell Division
230919
In which of the following stage, the chromosome is single thin and like long thread?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diakinesis
Explanation:
A Leptotene is stage in the prophase-I of meiosis In this stage chromosome appears thin and long. The leptotene stage is also known as the bouquet stage due to the specific alignment of chromosomes in the nucleus .
