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प्रश्न
Explain the Term Cell Diakinesis
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उत्तर
Diakinesis: In this stage nuclear membrane and nucleolus disappear. Spindle begins to be formed at the end of this stage.
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संबंधित प्रश्न
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.
Fill in the blank and explain the statement.
For formation of plasma membrane, ____________ molecules are necessary.
Describe anaphase in mitosis.
In which one of the following options the two stages of mitosis have been given in correct sequence?
Identify the stages of mitosis given below and label the figures.
Name the following:
Mitosis takes place in which cells.
Name the Following
The stage when chromosomes arrange at the equator.
Name the Following
Name the stage during which nuclear membrane and nucleoli reappear.
Name the Following
Nuclear envelope and nucleoli reappear in which stage.
Give Technical Terms
The stage in mitosis when the nucleolus starts disappearing.
Complete the following sentence with appropriate word :
______means the splitting of the nucleus.
Complete the following sentence with appropriate word :
Colchicine arrests cell division at __________.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The alkaloid colchicine inhibits the formation of the mitotic spindle.
The karyotype (set of chromosomes) shown below is taken from a dividing cell in a certain individual.
(i) Is the individual male or female? Explain your answer.
(ii) How would you expect
(a) a female cell and
(b) sperm cell to differ in chromosome composition?
Explain the following figure.
The phase of karyokinesis which is almost the reverse of prophase is ______.
Name these:
Two steps of the process Mitosis
