Free

Stages of Meiosis - Assignment Example

Comments (0) Cite this document
Summary
Commonly it is often referred to as two part cell division. The reproduced gamete contains half the amount of chromosomes that the parent cell contains. The entire process eventually…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER92.2% of users find it useful
Stages of Meiosis
Read TextPreview

Extract of sample "Stages of Meiosis"

of the of the of the PHASES IN MEIOSIS Meiosis is the type of cell division that takes place in organisms that reproduce sexually. Commonly it is often referred to as two part cell division. The reproduced gamete contains half the amount of chromosomes that the parent cell contains. The entire process eventually results in the production of four daughter cells each of which contains half the number of chromosomes as the parent cell. It can be divided into MEIOSIS I and MEIOSIS II. Following are the list of phases through which a cell undergoes during the process of meiosis.
MEIOSIS I
INTERPHASE
Before the process of meiosis begins the chromosomes prepare themselves for the process. The cell increases in mass. The chromatids of each chromosome (two sister chromatids of one chromosome) are held together by a centriole.
PROPHASE I
Chromosomes coil up together forming a spindle. Homologous chromosomes come closer and form a tetrad. For each pair of homologous chromosomes the exchange of genetic material may result in the crossing over of chromosomes. New combinations of alleles on chromosomes are the result of crossing over.
Figure 1: MEIOSIS I
METAPHASE I
The centromere of each chromosome attaches itself with a spindle fiber.
The metaphase plate (as shown in the figure) is at the equator of the spindle fibers. It is here that the homologous chromosomes line themselves up as tetrads.
ANAPHASE I
The homologous chromosomes disperse and move towards opposite poles of the cell. The resultant is the assurance that each new cell that will eventually form would receive only one chromosome from homologous pair.
TELOPHASE I
The spindle breaks down and the chromosomes uncoil eventually dividing the cytoplasm into two separate portions. Two daughter cells form. They contain exactly half of genetic information of parent cell. This is because they contain only one homologous chromosome.
MEIOSIS II
The following figure an overall view of the second phase of meiosis or meiosis II. The narration of the respected phases is presented after the illustration. Meiosis II is similar to Mitosis.
Figure 2: MEIOSIS II
PROPHASE II
Spindle fibers form in each of the two cells. Chromosomes line themselves up with the spindle.
METAPHASE II
The chromosomes line themselves up at center of the spindly fibers or the metaphase plate.
ANAPHASE II
Each chromosome splits at its centromere. The separated chromatids get pulled to opposite poles of the spindle fibers.
TELOPHASE II
The spindles break down and diminish. The cytoplasm divides after the nuclei have formed again.
CYTOKINESIS
Entire cell breaks up into two complete daughter cells. Each new cell is a copy of its parent cell and is referred to as a haploid daughter cell.
WORKS CITED:
Campbell, Neil A, and Jane B. Reece. Biology. San Francisco: Pearson Benjamin Cummings, 2009. Print
Rosch. The phases of Meiosis. N.d. Web. 3/15/2012 Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Stages of Meiosis Assignment Example | Topics and Well Written Essays - 500 words”, n.d.)
Retrieved from https://studentshare.org/biology/1591133-stages-of-meiosis
(Stages of Meiosis Assignment Example | Topics and Well Written Essays - 500 Words)
https://studentshare.org/biology/1591133-stages-of-meiosis.
“Stages of Meiosis Assignment Example | Topics and Well Written Essays - 500 Words”, n.d. https://studentshare.org/biology/1591133-stages-of-meiosis.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Stages of Meiosis

Candidate Cancer Meiosis Genes

...Candidate Cancer Meiosis Genes 1. Introduction Carcinogenesis is a complex and multistage process. Cancer is difficult to treat and it is important to detect it early so that therapeutic and surgical strategies can be developed to treat cancer. However it often happens that by the time the symptoms of cancer are detected in a person, the disease is already at a late stage and it becomes difficult to treat the person at that time. Also the cancers do not only vary between tissue types but also between patients. Moreover the cells in a tumour are a complex and diverse mix of cells that have different characteristics. Hence, identifying, detecting and treating cancer becomes difficult because of the...
24 Pages(6000 words)Literature review

Fowlers Stages of faith

...?Contents CHAPTER 3 INTRODUCTION 3 2. ment of the Study: 5 3. Significance of the Study: 5 4. OBJECTIVES OF THE STUDY 5 5. RESEARCH QUESTIONS: 6 1.6. ASSUMPTIONS OF THE STUDY 6 1.7. HYPOTHESIS: 7 1.8. DEFINITION OF TERMS: 7 1.9. STRUCTURE OF THE RESEARCH 8 CHAPTER II 9 2.0. INTRODUCTION 10 2.1. FAITH DEFINED 10 2.2. INFLUENCES AND USES OF FOWLER’S STAGES OF FAITH 12 2.3. FOWLER’S STAGES OF FAITH 13 2.4. CRITICISMS 21 CHAPTER III 33 METHODOLOGY 33 3.1.INTRODUCTION 33 3.6.POPULATION AND SAMPLE 39 CHAPTER IV 42 FINDINGS AND DISCUSSIONS 42 4.1. FINDINGS AND DISCUSSION 43 CHAPTER V 54 CONCLUSION AND RECOMMENDATION 54 5.1. SUMMARY 55 5.2. CONCLUSION 56 5.3. RECOMMENDATIONS 57 5.4. FUTURE POSSIBILITY OF THE RESEARCH AND SOME DIFFICULTIES... of...
55 Pages(13750 words)Essay

Modern Stages

...?Amanda and Helen: Family Dynamics as Examined through the Mother Figure in The Glass Menagerie and A Taste of Honey Introduction The role of the mother in both The Glass Menagerie (1944) and A Taste of Honey (1958) is an integral part of the development of the conflict. A Taste of Honey represents a realistic type of playwriting which is done with a multitude of social themes which made it into the forefront of a type of play referred to as “kitchen sink” in which all kinds of themes are put together in one work (Nava 2007). The Glass Menagerie also represents a multitude of themes, although it predates the ‘kitchen sink’ concept and does not share the same number of social themes that are represented in A Taste of Honey... and Helen: Family ...
9 Pages(2250 words)Essay

Developmental stages of children

...? Pre-school Aged Children Human development is a continuous process that starts at conception and doesn't stop until, perhaps, death. Most of the developmental processes occur in much the same way, making human development somewhat predictable and making it possible to offer some basic guidelines to help facilitate growth at each stage. There are several key moments in the developmental process at which new and different abilities emerge within most humans which have no obvious origination from earlier points. These moments represent a qualitative transformation in the individual's maturity level. To assist in the study of these types of development, various developmental tasks are commonly divided into four primary...
8 Pages(2000 words)Essay

Mitosis and Meiosis

...into their loose form and spindle fibers disassemble. Cytokinesis starts and new cells are towed (Sadava, 2013). In cytokinesis, the cytoplasm of the cell divides into two parts, each one having a new nucleus. Thus, the daughter cells are genetically identical to the parent cell. Meiosis is another type of cell division which occurs in reproductive cells or germ cells only. It involves two fissions of the nucleus and gives rise to four sex cells or gametes (Sadava, 2013). Each of the cells has half the number of chromosomes of the parent cell. Meiosis occurs in 2 stages, meiosis -1 and meiosis-2. In meiosis-1, the pairs separate and in...
3 Pages(750 words)Assignment

Compare and Contrast Meiosis vs Mitosis

...?Running Head: MITOSIS AND MEIOSIS Comparison and Contrast of Mitosis and Meiosis of the of the Comparison and Contrast of Mitosis and Meiosis The eukaryotic cells get divided by partitioning its chromosomes into two indistinguishable sets of chromosomes and this process occurs in the nucleus of the cell, this process of cell division is called mitosis1. In simple words, the parent cell gets separated into two daughter cells that are similar to the parent cell in the process of mitosis. However, the process of meiosis can be described as the cell division that occurs through sexual reproduction of eukaryotic cells. The chromosomes that are created in the meiotic process...
6 Pages(1500 words)Essay

Similarities and Differences in Mitosis and Meiosis

...to form two tetrads. The chromosomes in the tetrad cross over each other, allowing them to exchange genetic material. In the Metaphase in Mitosis, the two chromosomes line up in the center and split up into four chromatids which move to both of the poles. In Parallel, in meiosis the two tetrads line up in the center and split up into four chromosomes which go to both poles. (Cellupedia, 2000) In the Telophase, all the material that has migrated to the poles gets enclosed by the nuclear envelope in Mitosis as well as meiosis. Mitosis is completed at this stage. Meiosis then proceeds to Meiosis II which is identical to mitosis. DNA replication is skipped...
3 Pages(750 words)Essay

Scaling stages

...Stages of scaling development: The process of Scaling is consisting of five stages: induction, transport, attachment, removal and ageing (Epstein 1983a). Induction: Induction is, in fact, the pending time, towards reaching the scaling initiation process. Induction is the delayed phase between which nuclei are formed for crystallisation and also nutrients are deposited for further biological growth. The induction period can go on, for an arguably long span of time, possibly many weeks, only minutes or maybe even seconds. However, for crystallisation fouling, the initial phase duration lessens with an increase in the surface temperature (Epstein 1983b). Transport towards the surface: The scalant or their precursors in a moving fluid... the...
1 Pages(250 words)Essay

Developmental Stages

...Developmental Stages DEVELOPMENTAL STAGES Developmental stage Summary of each stage Teachers role for each stage Instructional strategies to support each stage 1-7 months -At first a baby cannot focus farther than 12 inches but learns to recognize her mother. Reacts to bright light, improved eye to hand coordination, can open and close hands. Use of its legs to reject standing (Raver, 2003. -Get close and make eye contact, talk and play simple games. Help him to soothe himself. Maintain the use of exercise using tummy as part of his national routine. Give him toys (Payton et. al, 2000). -Identify toys that interest him and faces. - talk...
1 Pages(250 words)Assignment

Mitosis, Meiosis, and Mutation

...the acquired mutation section of the lab to reach the virtual microscope and tissue samples. There are four simulation tissue samples; each of which is “stained” so that you can observe the stages of mitosis in the sample cells. Select each sample with your mouse and “drag” it to the virtual microscope in order to observe the cells in each sample. Results (20 points) Use the chart below to record your observations of the tissue samples. For each virtual tissue sample, count the number of cells in each stage of mitosis and record your observations below. Tissue Sample Interphase Prophase Metaphase Anaphase Telophase Sample #1: Normal Tissue 9 1 0 0 0 Sample #2: Normal Tissue 9 0 0 0 1 Sample #3: Cancer...
2 Pages(500 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Assignment on topic Stages of Meiosis for FREE!

Contact Us