230956
Arrange the following events of meiosis in the correct sequence. I. Terminalisation II. Crossing over III. Synapsis IV. Disjunction of genomes. The correct sequence is
1 IV, III, II, I
2 III, II, I, IV
3 II, I, IV, III
4 I, IV, III, II
Explanation:
B The correct sequence of meiosis is- Synapsis \(\rightarrow\) Crossing over \(\rightarrow\) Terminalization \(\rightarrow\) Disjunction of genomes.
[VMMC-2010 EAMCET-2005]
Cell cycle and Cell Division
230957
Chiasma shows the sites of
1 Spindle formation
2 Synapsis
3 Crossing over
4 None of these
Explanation:
C During prophase-I homologous chromosomes make conducts with each other called chiasmata and crossing over occurs. This is where chromosomes exchange sections of DNA. This is important for generating genetic diversity but is also crucial mechanically hold homologous chromosomes together.
[HP CET-2012]
Cell cycle and Cell Division
230958
Visible expression of the genetic phenomenon of crossing over is called
1 Recombination
2 Condensation
3 Chiasmata
4 Spiralization
Explanation:
Chiasma is the visible expression of the genetic phenomenon of crossing over. It is a cross shaped structure that forms between two homologous chromosomes during the diplotene stage of prophase I of meiosis.
[Karnataka CET-2012]
Cell cycle and Cell Division
230959
Identify the substage of prophase I of meiosis during which synapsis takes place
1 Leptotene
2 Pachytene
3 Diplotene
4 Zygotene
Explanation:
D Zygotene is the stage of prophase-I at which synapsis take place. The pairing of homologus chromosomes by the process of synapsis and formation of the synaptonemal complex.
230956
Arrange the following events of meiosis in the correct sequence. I. Terminalisation II. Crossing over III. Synapsis IV. Disjunction of genomes. The correct sequence is
1 IV, III, II, I
2 III, II, I, IV
3 II, I, IV, III
4 I, IV, III, II
Explanation:
B The correct sequence of meiosis is- Synapsis \(\rightarrow\) Crossing over \(\rightarrow\) Terminalization \(\rightarrow\) Disjunction of genomes.
[VMMC-2010 EAMCET-2005]
Cell cycle and Cell Division
230957
Chiasma shows the sites of
1 Spindle formation
2 Synapsis
3 Crossing over
4 None of these
Explanation:
C During prophase-I homologous chromosomes make conducts with each other called chiasmata and crossing over occurs. This is where chromosomes exchange sections of DNA. This is important for generating genetic diversity but is also crucial mechanically hold homologous chromosomes together.
[HP CET-2012]
Cell cycle and Cell Division
230958
Visible expression of the genetic phenomenon of crossing over is called
1 Recombination
2 Condensation
3 Chiasmata
4 Spiralization
Explanation:
Chiasma is the visible expression of the genetic phenomenon of crossing over. It is a cross shaped structure that forms between two homologous chromosomes during the diplotene stage of prophase I of meiosis.
[Karnataka CET-2012]
Cell cycle and Cell Division
230959
Identify the substage of prophase I of meiosis during which synapsis takes place
1 Leptotene
2 Pachytene
3 Diplotene
4 Zygotene
Explanation:
D Zygotene is the stage of prophase-I at which synapsis take place. The pairing of homologus chromosomes by the process of synapsis and formation of the synaptonemal complex.
230956
Arrange the following events of meiosis in the correct sequence. I. Terminalisation II. Crossing over III. Synapsis IV. Disjunction of genomes. The correct sequence is
1 IV, III, II, I
2 III, II, I, IV
3 II, I, IV, III
4 I, IV, III, II
Explanation:
B The correct sequence of meiosis is- Synapsis \(\rightarrow\) Crossing over \(\rightarrow\) Terminalization \(\rightarrow\) Disjunction of genomes.
[VMMC-2010 EAMCET-2005]
Cell cycle and Cell Division
230957
Chiasma shows the sites of
1 Spindle formation
2 Synapsis
3 Crossing over
4 None of these
Explanation:
C During prophase-I homologous chromosomes make conducts with each other called chiasmata and crossing over occurs. This is where chromosomes exchange sections of DNA. This is important for generating genetic diversity but is also crucial mechanically hold homologous chromosomes together.
[HP CET-2012]
Cell cycle and Cell Division
230958
Visible expression of the genetic phenomenon of crossing over is called
1 Recombination
2 Condensation
3 Chiasmata
4 Spiralization
Explanation:
Chiasma is the visible expression of the genetic phenomenon of crossing over. It is a cross shaped structure that forms between two homologous chromosomes during the diplotene stage of prophase I of meiosis.
[Karnataka CET-2012]
Cell cycle and Cell Division
230959
Identify the substage of prophase I of meiosis during which synapsis takes place
1 Leptotene
2 Pachytene
3 Diplotene
4 Zygotene
Explanation:
D Zygotene is the stage of prophase-I at which synapsis take place. The pairing of homologus chromosomes by the process of synapsis and formation of the synaptonemal complex.
230956
Arrange the following events of meiosis in the correct sequence. I. Terminalisation II. Crossing over III. Synapsis IV. Disjunction of genomes. The correct sequence is
1 IV, III, II, I
2 III, II, I, IV
3 II, I, IV, III
4 I, IV, III, II
Explanation:
B The correct sequence of meiosis is- Synapsis \(\rightarrow\) Crossing over \(\rightarrow\) Terminalization \(\rightarrow\) Disjunction of genomes.
[VMMC-2010 EAMCET-2005]
Cell cycle and Cell Division
230957
Chiasma shows the sites of
1 Spindle formation
2 Synapsis
3 Crossing over
4 None of these
Explanation:
C During prophase-I homologous chromosomes make conducts with each other called chiasmata and crossing over occurs. This is where chromosomes exchange sections of DNA. This is important for generating genetic diversity but is also crucial mechanically hold homologous chromosomes together.
[HP CET-2012]
Cell cycle and Cell Division
230958
Visible expression of the genetic phenomenon of crossing over is called
1 Recombination
2 Condensation
3 Chiasmata
4 Spiralization
Explanation:
Chiasma is the visible expression of the genetic phenomenon of crossing over. It is a cross shaped structure that forms between two homologous chromosomes during the diplotene stage of prophase I of meiosis.
[Karnataka CET-2012]
Cell cycle and Cell Division
230959
Identify the substage of prophase I of meiosis during which synapsis takes place
1 Leptotene
2 Pachytene
3 Diplotene
4 Zygotene
Explanation:
D Zygotene is the stage of prophase-I at which synapsis take place. The pairing of homologus chromosomes by the process of synapsis and formation of the synaptonemal complex.
