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Maharashtra State BoardSSC (English Medium) 10th Standard

Genetic recombination occurs in ______ phase of prophase of meiosis-I. - Science and Technology 2

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Question

Genetic recombination occurs in ______ phase of prophase of meiosis-I.

Fill in the Blanks
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Solution

Genetic recombination occurs in pachytene phase of prophase of meiosis-I.

Explanation:

Genetic recombination occurs when genetic material is exchanged between two different chromosomes or between different regions within the same chromosome.

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Chapter 2: Life Processes in living organisms Part -1 - Exercises [Page 21]

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Balbharati Science and Technology 2 [English] Standard 10 Maharashtra State Board
Chapter 2 Life Processes in living organisms Part -1
Exercises | Q 1.3 | Page 21

RELATED QUESTIONS

The diagram given below represents a certain stage of mitosis: 

  1. Identify the stage of cell division.
  2. Name the parts labelled A and B.
  3. What is the unique feature observed in this stage?
  4. How many daughter cells are formed from this type of cell division?

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.

With the help of suitable diagrams, explain the five stages of prophase-I of meiosis.


Write down the phases of mitosis.

Where does mitosis occur?

How is mitosis important?

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.


What happens to chromatin during prophase and metaphase of mitosis?

Draw a well-labelled diagram to show the anaphase stage of mitosis in plant cells having four chromosomes.


Name the Following

The stage when chromosomes arrange at the equator.


Give Technical Terms

The stage in mitosis when the nucleolus starts disappearing.


Give Technical Terms

The stage at which spindle fibres begin to be formed.


Choose the Odd One Out


Multiple Choice Question:

Karyokinesis is the division of


Multiple Choice Question:

The nuclear membrane and nucleolus become indistinguishable during


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?


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