English

Explain the Term Pachytene

Advertisements
Advertisements

Question

Explain the Term Pachytene

One Line Answer
Advertisements

Solution

Pachytene: The crossing-over begins at the end of this stage.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Cell Division - Explain the Terms

APPEARS IN

ICSE Biology [English] Class 10 ICSE
Chapter 1 Cell Division
Explain the Terms | Q 3

RELATED QUESTIONS

The diagram below represents a stage during cell division. Study the same and then answer the questions that follow: 

 

  1. Name the parts labelled 1, 2, and 3.
  2. Identify the above stage and give a reason to support your answer.
  3. Mention where in the body this type of cell division occurs.
  4. Name the stage prior to this stage and draw a diagram to represent the same.

Given below is a diagram representing a stage during mitotic cell division in an animal cell Examine it carefully and answer the questions which follow.

 

  1. Identify the stage. Give one reason in support of your answer.
  2. Name the cell organelle that forms the ‘aster’.
  3. Name the parts labelled 1, 2 and 3.
  4. Name the stage that follows the one shown above; how is that stage identified?
  5. Mention two differences between mitosis and meiosis with regards to:
    1. The number of daughter cells produced.
    2. The chromosome number in the daughter cells.

Where does mitosis occur?

Define the following:

Karyokinesis


Choose the correct answer:
Which division takes most time?


What happens to chromatin during prophase and metaphase of mitosis?

In which one of the following options the two stages of mitosis have been given in correct sequence?


Differentiate between Centrosome and centromere.


Explain the Term Cell Diakinesis


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 at which spindle fibres begin to be formed.


Complete the following sentence with appropriate word  :

______means the splitting of the nucleus.


Write the functional activity of the following structure:

Colchicine


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.

Explain the following figure.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×