In Class 11 Final Exams there will be Case studies and Passage Based Questions will be asked, So practice these types of questions. Study Rate is always there to help you. Free PDF Download of CBSE Class 11 Biology Chapter 10 Case Study and Passage Based Questions with Answers were Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Biology Cell Cycle and Cell Division to know their preparation level.

In CBSE Class 11 Biology Paper, There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Cell Cycle and Cell Division Case Study Questions With answers

Here, we have provided case-based/passage-based questions for Class 11 Biology Chapter 10 Cell Cycle and Cell Division

Case Study/Passage-Based Questions

Case Study 1:

Anaphase – At the onset of anaphase, each chromosome arranged at the metaphase plate is split simultaneously and the two daughter chromatids, now referred to as daughter chromosomes of the future daughter nuclei, begin their migration towards the two opposite poles. As each chromosome moves away from the equatorial plate, the centromere of each chromosome remains directed towards the pole and hence at the leading edge, with the arms of the chromosome trailing behind. Thus, anaphase stage is characterised by the following key events:

• Centromeres split and chromatids separate.
• Chromatids move to opposite poles.

Telophase –At the beginning of the final stage of karyokinesis, i.e., telophase, the chromosomes that have reached their respective poles de-condense and lose their individuality. The individual chromosomes can no longer be seen and each set of chromatin material tends to collect at each of the two poles. This is the stage which shows the following key events:

• Chromosomes cluster at opposite spindle poles and their identity is lost as discrete elements.
• Nuclear envelope develops around the chromosome clusters at each pole forming two daughter nuclei.
• Nucleolus, Golgi complex and ER reform.

1.) Anaphase is characterised by ______________________________

• a) Separation of chromatids
• b) Condensation of chromatin
• c) Splitting of Centromeres
• d) Both a and c

Ans: d) Both a and c

2.) In anaphase, chromatids migrates to _________________

• a) Centromeres
• b) Opposite poles
• c) Similar poles
• d) Both b and c

Ans: b) Opposite poles

3.) Name the phase in which de-condensation of chromosomes takes place.

Ans: In telophase, the chromosomes reached their respective poles and de-condense. In this phase chromosomes lose their individuality.

4.) Enlist the characteristic events that takes place during the telophase.

Ans: Characteristic events that takes place during the telophase.

• Chromosomes cluster at opposite spindle poles and their identity is lost as discrete elements.
• Nuclear envelope develops around the chromosome clusters at each pole forming two daughter nuclei.
• Nucleolus, Golgi complex and ER reform

5.) Write the characteristic events that takes place in anaphase?

Ans: Anaphase stage is characterised by the following key events:

• Centromeres split and chromatids separate.
• Chromatids move to opposite poles.

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