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Chapters
2: Systematics of Living Organisms
3: Kingdom Plantae
4: Kingdom Animalia
5: Cell Structure and Organization
6: Biomolecules
▶ 7: Cell Division
8: Plant Tissues and Anatomy
9: Morphology of Flowering Plants
10: Animal Tissue
11: Study of Animal Type : Cockroach
12: Photosynthesis
13: Respiration and Energy Transfer
14: Human Nutrition
15: Excretion and Osmoregulation
16: Skeleton and Movement
![Balbharati solutions for Biology [English] 11 Standard Maharashtra State Board chapter 7 - Cell Division - Shaalaa.com](/images/biology-english-11-standard-maharashtra-state-board_6:541650b8500449e89d279e995538873a.jpg "Balbharati solutions for Biology [English] 11 Standard Maharashtra State Board chapter 7 - Cell Division")
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Solutions for Chapter 7: Cell Division
Below listed, you can find solutions for Chapter 7 of Maharashtra State Board Balbharati for Biology [English] 11 Standard Maharashtra State Board.
Balbharati solutions for Biology [English] 11 Standard Maharashtra State Board 7 Cell Division Exercise [Pages 83 - 84]
Choose the correct option.
The connecting link between Meiosis-I and Meiosis-II is ______.
interphase - I
interphase - II
interkinesis
anaphase - I
Choose the correct option.
Synapsis is pairing of ______.
any two chromosomes
non-homologous chromosomes
sister chromatids
homologous chromosomes
Spindle apparatus is formed during which stage of mitosis?
Prophase
Metaphase
Anaphase
Telophase
Choose the correct option.
Chromosome number of a cell is almost doubled up during ______.
G1 - phase
S - phase
G2 - phase
G0 - phase
Choose the correct option.
How many meiotic divisions are necessary for the formation of 80 sperms?
80
40
20
10
Choose the correct option.
How many chromatides are present in anaphase-I of meiosis-I of a diploid cell having 20 chromosomes?
4
6
20
40
Choose the correct option.
In which of the following phase of mitosis chromosomes are arranged at the equatorial plane?
Prophase
Metaphase
Anaphase
Telophase
Choose the correct option.
Find incorrect statement.
Condensation of chromatin material occurs in prophase.
Daughter chromatids are formed in anaphase
Daughter nuclei are formed at metaphase.
Nuclear membrane reappears in telophase.
Choose the correct option.
Histone proteins are synthesized during ______.
G1 phase
S - phase
G2 phase
Interphase
Answer the following question.
While observing a slide, student observed many cells with nuclei. But some of the nuclei were bigger as compared to others but their nuclear membrane was not so clear. Teacher inferred it as one of the phase in the cell division. Which phase may be inferred by the teacher?
Answer the following question.
Students prepared a slide of onion root tip. There were many cells seen under a microscope. There was a cell seen under a microscope. There was a cell with two groups of chromosomes at opposite ends of the cell. This cell is in which phase of mitosis?
Answer the following question.
Students were shown some slides of cancerous cells. Teacher made a comment as if there would have been control at one of its cell cycle phase, there wouldn’t have been a condition like this. Which phase the teacher was referring to?
Answer the following question.
Some Mendelian crossing experimental results were shown to the students. Teacher informed that there are two genes located on the same chromosome. He enquired if they will be ever separated from each other?
Answer the following question.
Students were observing a film on Paramoecium. It underwent a process of reproduction. Teacher said it is due to cell division. But students objected and said that there was no disappearance of the nuclear membrane and no spindle formation, how can it be cell division? Can you clarify?
Answer the following question.
Is the meiosis responsible for evolution? Justify your answer.
Answer the following question.
Why mitosis and meiosis – II are called as homotypic division?
Explain the significance of mitosis.
Answer the following question.
Enlist the different stages of prophase – I.
Draw a labelled diagram and write an explanation.
With the help of a suitable diagram, describe the cell cycle.
Draw labelled diagrams and write an explanation.
Distinguish between mitosis and meiosis.
Draw labelled diagrams and write an explanation.
Draw the diagram of metaphase.
Match the following column A with column B.
| Column-A (phases) |
Column-B (Their events) |
| a. Leptotene | 1. Crossing over |
| b. Zygotene | 2. Desynapsis |
| c. Pachytene | 3. Synapsis |
| d. Diplotene | 4. Bouquet stage |
Is a given figure correct? why?
If an onion has 16 chromosomes in its leaf cell, how many chromosomes will be there in its root cell and pollen grain?
Identify the following phase of mitosis and label the ‘A’ given in the diagram.
Identify the following phase of mitosis and label the 'B' given in the diagram.
Solutions for 7: Cell Division
Balbharati solutions for Biology [English] 11 Standard Maharashtra State Board chapter 7 - Cell Division
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Concepts covered in Biology [English] 11 Standard Maharashtra State Board chapter 7 Cell Division are Introduction of Cell Division, Cell Cycle, Types of Cell Division, Significance of Mitosis, Significance of Mitosis.
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