Cells - The Unit of Life
Meiosis takes place in ............
List the main differences between mitosis and meiosis?
Mitosis Meiosis
1) This division takes place in somatic cells and as a result of this division growth occurs. 1) This takes place usually in reproductive cells and as a result of this character one generation pass into the other.
2) Completed in one stage. 2) Completed in two stages.
3) Prophase is smaller (as compared to prophase of Meiosis). 3) Prophase longer than prophase of mitosis and divided into five substages.
4) No crossing over takes place. 4) Crossing over takes place in which exchange of segments of chromatids occurs.
5) Synapsis does not take place at metaphase. 5) Synapsis between homologous chromosomes takes place (bivalent stage).
6) At metaphase, centromere is towards equatorial plate and ends of chromosomes towards poles. Centromere divides. 6) At metaphase I, the centromere is towards poles and ends of chromosomes towards equatorial plate. Centromere does not divide.
7) Chromatids are long and thin. 7) Chromatids are shorter and thick
8) Cytokinesis follows karyokinesis. 8) After Telophase I, cytokinesis does not takes place always (may occur).
Meiosis takes place in ............
Which of the following is not a characteristic of meiosis?
Find examples where the four daughter cells from meiosis are equal in size and where they are found unequal in size.
What is the significance of meiosis?
Best material to study meiosis is __________
In a butterfly has chromosomes number $$360$$ in its meiocyte $$(2n)$$. What will be the chromosome number in its gametes?
The male gametes of rice plant have $$12$$ chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, _________ respectively.
In meiosis, the daughter chromatids segregate form each other at ______________.
The formation of multivalent at meiosis in a diploid organism is due to.
Comment on the statement - Meiosis enables the conservation of specific chromosome number of each species even though the process per se, results in reduction of chromosome number.