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प्रश्न
The exchange of chromatid parts between the maternal and the paternal chromatids of a pair of homologous chromosomes during meiosis.
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उत्तर
Crossing over
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संबंधित प्रश्न
Draw a labelled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosomes.
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 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 mitotic cell division. Study it carefully and answer the question that follow.
How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?
Complete the following sentence with appropriate word :
The type of cell division that occurs in the apical meristem of plants is ______.
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.
Why should gametes be produced by meiosis during sexual reproduction?
The growth of multicellular organisms is due to
