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प्रश्न
Why should gametes be produced by meiosis during sexual reproduction?
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उत्तर
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
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संबंधित प्रश्न
Given below are three diagrammatic sketches (A, B and C) of one and the same particular phase during mitotic type of cell division.
- Identify the phase.
- What is the diploid number of chromosomes shown in them?
- Identify whether these are animal cells or plant cells? Give reasons.
- Which of these is/are shown in the correct direction?
- Only A
- Only B
- Only A and C
- 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 [5] thediagram and answer the following questions:
Name of the nitrogenous bases.
Choose the correct answer:
Cytokinesis involves ________
Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.
Is it a plant cell or an animal cell? Give a reason to support your answer.
Explain the significance of 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.
Both unicellular and multicellular organisms undergo mitosis. What are the differences, if any, observed in the process between the two?
Write briefly the significance of mitosis and meiosis in multicellular organism.
The basis of genetic variation in the living organisms during mitosis occurs due to ______.
