Advertisements
Advertisements
Question
The fig given alongside shows a certain stage in a cell division in a cell with four chromosomes.
(i) Name the parts of the chromosome labeled A and B.
(ii) Name the structure C. what is its function?
(iii) Name the type of division . Give a reason.
(iv) Name the stage of division.
(v) Name the stages before and after the stage shown in diagram.
Advertisements
Solution
(i) A - Duplicated chromosomes
B - Centromere
(ii) The structure C is Spindle fibre. Its function is to help in the movement of chromosomes.
(iii) The type of cell division is mitosis because all chromosomes appear to be same as there is no crossing over.
(iv) Metaphase.
(v) Prophase occurs before metaphase and after metaphase anaphase takes place.
APPEARS IN
RELATED QUESTIONS
The diagram given below represents a certain stage of mitosis:
- Identify the stage of cell division.
- Name the parts labelled A and B.
- What is the unique feature observed in this stage?
- How many daughter cells are formed from this type of cell division?
The diagram given below represents a stage during cell division.
Study the same and answer the questions that follow:
- Identify whether it is a plant cell or an animal cell. Give a reason in support of your answer.
- Name the stage depicted in the diagram. What is the unique feature observed in this stage?
- Name the type of cell division that occurs during:
- Replacement of old leaves by new ones
- Formation of gametes
- What is the stage that comes before the stage shown in the diagram?
- Draw a neat, labelled diagram of the stage mentioned in (iv) above keeping the chromosome number constant.
All chromosomes are arranged parallel to equatorial plane of cell in ______ phase of mitosis.
With the help of suitable diagrams, explain the five stages of prophase-I of meiosis.
Define the following:
Karyokinesis
In which one of the following options the two stages of mitosis have been given in correct sequence?
Differentiate between Centrosome and centromere.
Identify the stages of mitosis given below and label the figures.
Draw a labeled schematic representation of mitosis cell division.
Name the following:
Mitosis takes place in which cells.
Multiple Choice Question:
Karyokinesis is the division of
Multiple Choice Question:
The nuclear membrane disappears in
Write the functional activity of the following structure:
Colchicine
Give the sequence of the events occurring during the prophase of mitosis.
During Mitosis what is the position of chromatids in the anaphase?
Match List - I with List - II.
| List - I | List - II |
| A. Centromere | I. Mitochondrion |
| B. Cilium | II. Cell division |
| C. Cristae | III. Сell movement |
| D. Cell membrane | IV. Phospholipid Bilayer |
Choose the correct answer from the options given below:
