What does telophase look like under a microscope?
What does telophase look like under a microscope?
Telophase Under a Microscope During the last of the mitosis phases, telophase, the spindle fibers disappear and the cell membrane forms between the two sides of the cell. The new nucleoli may be visible, and you will note a cell membrane (or cell wall) between the two daughter cells.
Which of the following will you expect to see in Zygotene stage?
Which of the following will you expect to see in zygotene stage? Explanation: The zygotene chromosomes are more condensed than that in leptotene stage. The ball and seen mainly in leptotene stage while the O shaped structure is in diplotene. The thin chromatins are seen in interphase or pre-leptptene.
What phase do chromosomes Decondense?
During telophase both sets of chromatids are surround by new nuclear membranes and chromosomes decondense into chromatin. Cytokinesis (the dividing of the cytoplasm into two cells) follows telophase. If the cell were arrested during telophase, distinct chromatids would no longer be visible.
What magnification do you need to see onion root tip?
Set up your microscope, place the onion root slide on the stage and focus on low (40x) power. move your slide so that your field of view is centered on the root tip.
What is zygotene stage?
The zygotene is the stage of prophase I that follows after leptotene and precedes pachytene. Zygotene is that phase wherein the homologous chromosomes pair or come together in synapse. The pairing or coming together of homologous chromosomes is called synapsis. It may be facilitated by the synaptonemal complex.
What happens during zygotene?
During zygotene, homologous chromosomes begin to align along their entire length by a process called synapsis that is necessarily precise. Each pair of chromosomes is held together by a ribbon-like protein and forms the synaptonemal complex. Then, during pachytene, the pairs of chromosomes become condensed and coiled.
How can you tell interphase and prophase apart?
The key difference between interphase and prophase is that a cell spends a lot of time in interphase undergoing protein synthesis, DNA replication, and growth while the cell spends a short time in prophase by undergoing condensation of chromatin, pairing of homologous chromosomes and spindle fiber formation.
Do chromosomes Decondense in telophase 1?
Telophase I and Cytokinesis In some organisms, the chromosomes decondense and nuclear envelopes form around the chromatids in telophase I. In other organisms, cytokinesis—the physical separation of the cytoplasmic components into two daughter cells—occurs without reformation of the nuclei.
Why do chromosomes Decondense during telophase?
Chromosome decondensation (also known as relaxation or decompaction) into expanded chromatin is necessary for the cell’s resumption of interphase processes, and occurs in parallel to nuclear envelope assembly during telophase in many eukaryotes.
