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प्रश्न
State the difference between:
Centrosome and centromere:
उत्तर
The centrosome is an area in the cell where microtubules are produced. Within an animal
cell centrosome, there is a pair of small organelles called the centrioles. During animal cell
division, the centrosome divides and the centrioles replicate (make new copies) whereas each
chromosome in its condensed form consists of two chromatids joined at some point along
the length. This point of attachment is called centromere.
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संबंधित प्रश्न
How many daughter cells would you expect if 4 cells undergo
(i) Mitosis
(ii) Meiosis
(iii) Amitosis
Choose the correct answer:
Gametes are formed by ________________
Complete the following sentence with appropriate word :
The stage between Meiosis-I and Meiosis-II is called ______.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Germ cells divide meiotically to produce gametes.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Meiosis is also called heterotypic division.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Meiosis leads to recombination of characters.
Multiple Choice Question:
Leptotene, Zygotene, and Diplotene phases are found in
Mention the stages of meiotic Prophase -I.
Why is meiosis called reductional division and mitosis equational division?
