Advertisements
Advertisements
Question
Explain the Term Cell Diakinesis
Advertisements
Solution
Diakinesis: In this stage nuclear membrane and nucleolus disappear. Spindle begins to be formed at the end of this stage.
APPEARS IN
RELATED QUESTIONS
With the help of suitable diagrams, explain the five stages of prophase-I of meiosis.
Define the following:
Karyokinesis
Fill in the blank:
______ takes place in body cells resulting in growth and development.
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.
Identify the stages of mitosis given below and label the figures.
The diagram below represents a certain stage of a cell.
(i) Is it an animal cell or a plant cell ? Give one reason in support of your answer.
(ii) Label the parts numbered 1 – 3.
(iii) Which stage (phase) of mitosis is represented in this diagram
Draw a well-labelled diagram to show the anaphase stage of mitosis in plant cells having four chromosomes.
Name the following:
Replacement of dead cells is accomplished by which process.
Give Technical Terms
The stage at which spindle fibres begin to be formed.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the terms in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Anaphase | (a) Chromosomes become arranged in a horizontal plane at the equator. |
| (ii) Prophase | (b) Daughter chromosomes move to opposite poles of the spindle. |
| (iii) Telophase | (c) Chromosomes become visible as fine, long threads. |
| (iv) Metaphase | (d) Chromosomes lose their distinctiveness and gradually become transformed into chromatin network. |
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?
During Mitosis what is the position of chromatids in metaphase?
During Mitosis what is the position of chromatids in the anaphase?
