permanent slide telophase of mitotic cell division or zygotene stage of meiotic I cell division
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Answer:
telophase: in this slide two sets of chromosomes are seen.
two sets of chromosomes are present at two poles. no spindle apparatus is seen. nuclear membrane is present surrounding the chromosomes in each pole . therefore it is the telophase of meiosis.
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Answer:
Telophase of mitotic cell division
Telophase is the fifth and final phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells.
Zygotene stage of meiotic I cell division
Zygotene is the second stage of meiosis prophase-1. It is preceded by the leptotene stage, where uncoiling and condensing of chromosomes takes place.
Explanation:
Telophase of mitotic cell division
Telophase is the fifth and final stage of mitosis, a process that separates the amplified genetic material in the nucleus of the parent cell into two identical daughter cells. Telophase begins when the replicated paired chromosomes are separated and pulled to opposite sides, or poles, of the cell. During telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm. Chromosomes begin to twist, making them fragmented and less compact. Along with telophase, the cell undergoes a process called cytokinesis, which divides the cytoplasm of the parent cell into two daughter cells.
Zygotene stage of meiotic I cell division
Zygotene is the second stage of prophase-1 of meiosis. This is preceded by the leptotene phase, where the chromosomes uncoil and condense.
In the zygotene phase, homologous chromosomes (one from the mother and one from the father) come together and pair. The process of pairing homologous chromosomes is called synapsis.
The synapse process is very specific and precise. The synapse process can start at the end of the chromosome and continue towards the centromere or vice versa. In the random type, the synapse occurs at different points.
Paired chromosomes are linked together by a protein complex known as the synaptonemal complex.
Homologous chromosomes at this stage are called tetrads or bivalents. The number of bivalents is half the number of chromosomes originally present in the cell. Each bivalent contains one chromosome from each parent.
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