Select Question Set:
Q. No.In a eukaryote, the cell cycle typically is divided into:
1. Two phases
2. Three phases
3. Four phases
4. Five phases
Subtopic: Intro to Cell Cycle & Interphase | Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
70%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In a somatic eukaryotic cell undergoing mitosis, when do expect to find most number of chromosomes in the cell?
1. At the end of the G1 phase
2. At the end of the S phase
3. At the end of Anaphase
4. In the resultant daughter cells
1. At the end of the G1 phase
2. At the end of the S phase
3. At the end of Anaphase
4. In the resultant daughter cells
Subtopic: Cell Division: Mitosis (Karyokinesis) |
58%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Study the given two statements – an Assertion and Reason, and select the correct answer from the options given:
Assertion: Meiosis is the mechanism by which conservation of specific chromosome number of each species is achieved across generations in sexually reproducing organisms.
Reason: Meiosis increases the genetic variability in the populations of organisms from one generation to the next.
1. Both Assertion and Reason are true and Reason correctly explains Assertion
2. Assertion is true but Reason is false
3. Assertion is false but Reason is true.
4. Both Assertion and Reason are true but Reason does not correctly explain Assertion.
Assertion: Meiosis is the mechanism by which conservation of specific chromosome number of each species is achieved across generations in sexually reproducing organisms.
Reason: Meiosis increases the genetic variability in the populations of organisms from one generation to the next.
1. Both Assertion and Reason are true and Reason correctly explains Assertion
2. Assertion is true but Reason is false
3. Assertion is false but Reason is true.
4. Both Assertion and Reason are true but Reason does not correctly explain Assertion.
Subtopic: Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
51%
Please attempt this question first.
Hints
In Prophase I of Meiosis I, recombination between homologous chromosomes is completed:
1. by the end of zygotene
2. by the end of pachytene
3. at the beginning of diplotene
4. when terminalisation of chiasmata occurs at diakinesis
1. by the end of zygotene
2. by the end of pachytene
3. at the beginning of diplotene
4. when terminalisation of chiasmata occurs at diakinesis
Subtopic: Cell Cycle: Meiosis I |
72%
Please attempt this question first.
Hints
During meiosis I, the chromosomes start pairing at:
1. Zygotene
2. Pachytene
3. Diplotene
4. Leptotene
1. Zygotene
2. Pachytene
3. Diplotene
4. Leptotene
Subtopic: Cell Cycle: Meiosis I |
74%
From NCERT
NEET - 2013
Please attempt this question first.
Hints
Please attempt this question first.
During the metaphase stage of mitosis spindle fibres attach to chromosomes at:
| 1. | kinetochore |
| 2. | both centromere and kinetochore |
| 3. | centromere, kinetochore and areas adjoining centromere |
| 4. | centromere |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
89%
From NCERT
NEET - 2013
Please attempt this question first.
Hints
Please attempt this question first.
A stage of mitosis is shown in the diagram. Which stage is it and what are its characteristics?
| 1. | Metaphase-spindle fibers attached to kinetochores, centromeres split and chromatids separate |
| 2. | Metaphase- chromosomes moved to spindle equator chromosomes made up of two sister chromatids |
| 3. | Anaphase - centromeres split and chromatids separate and start moving away |
| 4. | Late prophase - chromosomes move to spindle equator |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
76%
From NCERT
NEET - 2013
Please attempt this question first.
Hints
Please attempt this question first.
What will be correct regarding metaphase of mitosis?
I. The complete disintegration of the nuclear envelope marks the start of metaphase.
II. Condensation of chromosomes is completed.
III. All the chromosomes come to lie at the equator.
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
I. The complete disintegration of the nuclear envelope marks the start of metaphase.
II. Condensation of chromosomes is completed.
III. All the chromosomes come to lie at the equator.
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Cell Division: Mitosis (Karyokinesis) |
83%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Identify the incorrectly matched pair:
| 1. | Prophase II: | The nuclear membrane disappears by the end of this stage and the chromosomes again become compact. |
| 2. | Metaphase II: | The chromosomes align at the equator and the microtubules from opposite poles of the spindle get attached to the kinetochores of sister chromatids. |
| 3. | Anaphase II: | The homologous chromosomes separate, while sister chromatids remain associated at their centromeres. |
| 4. | Telophase II: | The two groups of chromosomes once again get enclosed by a nuclear envelope |
Subtopic: Cell Cycle: Meiosis II |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Mitosis is called equational division.
Reason(R): The amount of DNA is the same in parent and progeny cells if it is mitosis.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The amount of DNA is the same in parent and progeny cells if it is mitosis.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Cell Division: Mitosis (Karyokinesis) |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2024 GoodEd Technologies Pvt. Ltd.