English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

Why should gametes be produced by meiosis during sexual reproduction? - Science

Advertisements
Advertisements

Question

Why should gametes be produced by meiosis during sexual reproduction?

Short/Brief Note
Advertisements

Solution

Meiosis is important as it produces gametes i.e., male or female germ cells. During meiosis a germ cell or gamete divides to make four new sex cells. As a result of fertilization two gamates join together to form an egg or zygote. Therefore only if gametes are produced, fertilization can take place

shaalaa.com
  Is there an error in this question or solution?
Chapter 18: Organisation of Tissues - Exercise [Page 224]

APPEARS IN

Samacheer Kalvi Science [English] Class 9 TN Board
Chapter 18 Organisation of Tissues
Exercise | Q V. 5. | Page 224

RELATED QUESTIONS

Given below are three diagrammatic sketches (A, B and C) of one and the same particular phase during mitotic type of cell division.

  1. Identify the phase.
  2. What is the diploid number of chromosomes shown in them?
  3. Identify whether these are animal cells or plant cells? Give reasons.
  4. Which of these is/are shown in the correct direction?
    1. Only A
    2. Only B
    3. Only A and C
    4. All the three

Given below is a diagram representing a stage during the mitotic cell division. Study thediagram  and answer the following questions:

 Identify the stage by giving a suitable reason.


 Given below is a diagram representing a stage during the mitotic cell division. Study  thediagram  and answer the following questions:

 Is it a plant or an animal cell? Give a reason to support your answer. 


How many chromosomes will each daughter cell have after the completion of the above division? 

How many chromosomes will each daughter cell have after the completion of the above division? 


 Given below is a diagram representing a stage during the mitotic cell division. Study [5] thediagram  and answer the following questions:

Name of the nitrogenous bases. 


Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.

Name the stage that follows the one shown here. How is that stage identified?


Give a labeled diagram to illustrate amitosis.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

Somatic cells of a multicellular organism arise from a single cell by mitosis.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

Asexual reproduction is accomplished through mitosis.


The basis of genetic variation in the living organisms during mitosis occurs due to ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×