230867
In which stage of mitosis chromosome arrange on equatorial plate?
1 Prophase
2 Metaphase
3 Anaphase
4 Telophase
Explanation:
B At the metaphase stage chromosome arranged of on equatorial plate. The second stage of mitosis is known as metaphase during this stage, the spindle fibers start to connect to the compressed chromosomes. The preparation for their segregation, the microtubules rearranged the chromosomes so that they appear in a line known as the metaphase plate.
[UP CPMT-2012
Cell cycle and Cell Division
230874
The mitotic cell cycle is divided typically into four phases: \(G_{1}, S, G_{2}\) and \(M\). Considering a mitotic cycle time of \(18 \mathrm{hrs}\); the distribution of period of time (in hrs) for each of these phases will be
1 A - 1 B - 3 C - 5 D - 9
2 A - 9 B - 1 C - 3 D - 5
3 A - 9 B - 5 C - 3 D - 1
4 A - 3 B - 5 C - 9 D - 1
Explanation:
C The mitotic cell cycle is divided into four phases: \(G_{1}, S, G_{2}\) and \(M\). The \(G_{1}\) phase is the first phase and it is a period of growth and preparation for DNA replication. The S phase is the second phase, and it is when DNA replication occurs. The \(\mathrm{G}_{2}\) phase is the third phase, and it is a period of preparation for mitosis. The \(M\) phase is the fourth phase and it is when mitosis occurs. The total time of the mitotic cell cycle is \(18 \mathrm{H}\). The \(\mathrm{G}_{1}\) takes up \(9 \mathrm{H}, \mathrm{S}\) phase \(5 \mathrm{H}, \mathrm{G}_{2}\) phase takes up \(3 \mathrm{H}\) and the M phase takes up \(1 \mathrm{H}\).
[JIPMER-2015]
Cell cycle and Cell Division
230854
During mitosis number of chromosomes gets
1 change
2 no change
3 may be change if cell is mature
4 may be change if cell is immature
Explanation:
B There is no change in chromosome number during mitosis but the DNA content per chromosome doubles during S-phase. Mitosis division is the process of cell division where chromosomes replicate and are equally distributed into two daughter cells. The chromosome number in each daughter cell is equal (no change) to that to the parent cell. e.g : diploid
[BVP-2008
Cell cycle and Cell Division
230857
Which one of the following never occurs during mitotic cell division?
1 Coiling and condensation of the chromatids
2 Spindle fibres attach to kinetochores of chromosomes
3 Movement of centrioles towards opposite poles
4 Pairing of homologous chromosomes
Explanation:
D Mitotic cell is a type of cell division that have a nucleus. - Mitosis cells use it to make more cells. During mitotic division coiling and condensation of the chromatids and spindle fibers attach to kinetochores of chromosomes and also movement of centriole towards opposite poles. So pairing of homologous chromosome never occur mitotic cell division.
230867
In which stage of mitosis chromosome arrange on equatorial plate?
1 Prophase
2 Metaphase
3 Anaphase
4 Telophase
Explanation:
B At the metaphase stage chromosome arranged of on equatorial plate. The second stage of mitosis is known as metaphase during this stage, the spindle fibers start to connect to the compressed chromosomes. The preparation for their segregation, the microtubules rearranged the chromosomes so that they appear in a line known as the metaphase plate.
[UP CPMT-2012
Cell cycle and Cell Division
230874
The mitotic cell cycle is divided typically into four phases: \(G_{1}, S, G_{2}\) and \(M\). Considering a mitotic cycle time of \(18 \mathrm{hrs}\); the distribution of period of time (in hrs) for each of these phases will be
1 A - 1 B - 3 C - 5 D - 9
2 A - 9 B - 1 C - 3 D - 5
3 A - 9 B - 5 C - 3 D - 1
4 A - 3 B - 5 C - 9 D - 1
Explanation:
C The mitotic cell cycle is divided into four phases: \(G_{1}, S, G_{2}\) and \(M\). The \(G_{1}\) phase is the first phase and it is a period of growth and preparation for DNA replication. The S phase is the second phase, and it is when DNA replication occurs. The \(\mathrm{G}_{2}\) phase is the third phase, and it is a period of preparation for mitosis. The \(M\) phase is the fourth phase and it is when mitosis occurs. The total time of the mitotic cell cycle is \(18 \mathrm{H}\). The \(\mathrm{G}_{1}\) takes up \(9 \mathrm{H}, \mathrm{S}\) phase \(5 \mathrm{H}, \mathrm{G}_{2}\) phase takes up \(3 \mathrm{H}\) and the M phase takes up \(1 \mathrm{H}\).
[JIPMER-2015]
Cell cycle and Cell Division
230854
During mitosis number of chromosomes gets
1 change
2 no change
3 may be change if cell is mature
4 may be change if cell is immature
Explanation:
B There is no change in chromosome number during mitosis but the DNA content per chromosome doubles during S-phase. Mitosis division is the process of cell division where chromosomes replicate and are equally distributed into two daughter cells. The chromosome number in each daughter cell is equal (no change) to that to the parent cell. e.g : diploid
[BVP-2008
Cell cycle and Cell Division
230857
Which one of the following never occurs during mitotic cell division?
1 Coiling and condensation of the chromatids
2 Spindle fibres attach to kinetochores of chromosomes
3 Movement of centrioles towards opposite poles
4 Pairing of homologous chromosomes
Explanation:
D Mitotic cell is a type of cell division that have a nucleus. - Mitosis cells use it to make more cells. During mitotic division coiling and condensation of the chromatids and spindle fibers attach to kinetochores of chromosomes and also movement of centriole towards opposite poles. So pairing of homologous chromosome never occur mitotic cell division.
230867
In which stage of mitosis chromosome arrange on equatorial plate?
1 Prophase
2 Metaphase
3 Anaphase
4 Telophase
Explanation:
B At the metaphase stage chromosome arranged of on equatorial plate. The second stage of mitosis is known as metaphase during this stage, the spindle fibers start to connect to the compressed chromosomes. The preparation for their segregation, the microtubules rearranged the chromosomes so that they appear in a line known as the metaphase plate.
[UP CPMT-2012
Cell cycle and Cell Division
230874
The mitotic cell cycle is divided typically into four phases: \(G_{1}, S, G_{2}\) and \(M\). Considering a mitotic cycle time of \(18 \mathrm{hrs}\); the distribution of period of time (in hrs) for each of these phases will be
1 A - 1 B - 3 C - 5 D - 9
2 A - 9 B - 1 C - 3 D - 5
3 A - 9 B - 5 C - 3 D - 1
4 A - 3 B - 5 C - 9 D - 1
Explanation:
C The mitotic cell cycle is divided into four phases: \(G_{1}, S, G_{2}\) and \(M\). The \(G_{1}\) phase is the first phase and it is a period of growth and preparation for DNA replication. The S phase is the second phase, and it is when DNA replication occurs. The \(\mathrm{G}_{2}\) phase is the third phase, and it is a period of preparation for mitosis. The \(M\) phase is the fourth phase and it is when mitosis occurs. The total time of the mitotic cell cycle is \(18 \mathrm{H}\). The \(\mathrm{G}_{1}\) takes up \(9 \mathrm{H}, \mathrm{S}\) phase \(5 \mathrm{H}, \mathrm{G}_{2}\) phase takes up \(3 \mathrm{H}\) and the M phase takes up \(1 \mathrm{H}\).
[JIPMER-2015]
Cell cycle and Cell Division
230854
During mitosis number of chromosomes gets
1 change
2 no change
3 may be change if cell is mature
4 may be change if cell is immature
Explanation:
B There is no change in chromosome number during mitosis but the DNA content per chromosome doubles during S-phase. Mitosis division is the process of cell division where chromosomes replicate and are equally distributed into two daughter cells. The chromosome number in each daughter cell is equal (no change) to that to the parent cell. e.g : diploid
[BVP-2008
Cell cycle and Cell Division
230857
Which one of the following never occurs during mitotic cell division?
1 Coiling and condensation of the chromatids
2 Spindle fibres attach to kinetochores of chromosomes
3 Movement of centrioles towards opposite poles
4 Pairing of homologous chromosomes
Explanation:
D Mitotic cell is a type of cell division that have a nucleus. - Mitosis cells use it to make more cells. During mitotic division coiling and condensation of the chromatids and spindle fibers attach to kinetochores of chromosomes and also movement of centriole towards opposite poles. So pairing of homologous chromosome never occur mitotic cell division.
230867
In which stage of mitosis chromosome arrange on equatorial plate?
1 Prophase
2 Metaphase
3 Anaphase
4 Telophase
Explanation:
B At the metaphase stage chromosome arranged of on equatorial plate. The second stage of mitosis is known as metaphase during this stage, the spindle fibers start to connect to the compressed chromosomes. The preparation for their segregation, the microtubules rearranged the chromosomes so that they appear in a line known as the metaphase plate.
[UP CPMT-2012
Cell cycle and Cell Division
230874
The mitotic cell cycle is divided typically into four phases: \(G_{1}, S, G_{2}\) and \(M\). Considering a mitotic cycle time of \(18 \mathrm{hrs}\); the distribution of period of time (in hrs) for each of these phases will be
1 A - 1 B - 3 C - 5 D - 9
2 A - 9 B - 1 C - 3 D - 5
3 A - 9 B - 5 C - 3 D - 1
4 A - 3 B - 5 C - 9 D - 1
Explanation:
C The mitotic cell cycle is divided into four phases: \(G_{1}, S, G_{2}\) and \(M\). The \(G_{1}\) phase is the first phase and it is a period of growth and preparation for DNA replication. The S phase is the second phase, and it is when DNA replication occurs. The \(\mathrm{G}_{2}\) phase is the third phase, and it is a period of preparation for mitosis. The \(M\) phase is the fourth phase and it is when mitosis occurs. The total time of the mitotic cell cycle is \(18 \mathrm{H}\). The \(\mathrm{G}_{1}\) takes up \(9 \mathrm{H}, \mathrm{S}\) phase \(5 \mathrm{H}, \mathrm{G}_{2}\) phase takes up \(3 \mathrm{H}\) and the M phase takes up \(1 \mathrm{H}\).
[JIPMER-2015]
Cell cycle and Cell Division
230854
During mitosis number of chromosomes gets
1 change
2 no change
3 may be change if cell is mature
4 may be change if cell is immature
Explanation:
B There is no change in chromosome number during mitosis but the DNA content per chromosome doubles during S-phase. Mitosis division is the process of cell division where chromosomes replicate and are equally distributed into two daughter cells. The chromosome number in each daughter cell is equal (no change) to that to the parent cell. e.g : diploid
[BVP-2008
Cell cycle and Cell Division
230857
Which one of the following never occurs during mitotic cell division?
1 Coiling and condensation of the chromatids
2 Spindle fibres attach to kinetochores of chromosomes
3 Movement of centrioles towards opposite poles
4 Pairing of homologous chromosomes
Explanation:
D Mitotic cell is a type of cell division that have a nucleus. - Mitosis cells use it to make more cells. During mitotic division coiling and condensation of the chromatids and spindle fibers attach to kinetochores of chromosomes and also movement of centriole towards opposite poles. So pairing of homologous chromosome never occur mitotic cell division.
