Photosynthesis Lab Report
During this week, we performed the Meiosis pipe cleaner project and completed worksheets pertaining to meiosis. Afterwards, we took notes on karyotyping and finished worksheets for it. Regarding the meiosis pipe cleaner project, it is similar to the mitosis project since the chromosomes have a specific color key to them. However, in the meiosis project, we incorporated alleles in the chromosomes, by representing them with tightly loop pipe cleaners around the legs. As a result, when prophase I occurs, the alleles on one non-sister chromatid transfers to another non-sister chromatid via crossing-over. Another addition is since meiosis results in 4 haploid cells, we created 4 oval paper cut up with half the chromosomes on an original, diploid cell. The worksheets’ purpose were to distinguish the differences between meiosis and mitosis. Along with the aforementioned change in ploidy, other differences include the formation of tetrads and the presence of 2 cell divisions in meiosis, and the fact that meiosis occurs in a gamete-producing cell, while mitosis occurs in a body cell. …show more content…
Cells are cultivated to great amounts. Then, they are stopped at metaphase, centrifuged, and lyzed for researchers to obtain the chromosomes. Afterwards, the chromosomes are stained, photographed, and grouped by size and their banding patterns. Also, I learned about several genetic disorders. For example, traits of people with Klinefelter syndrome include lower IQ, tall stature, and poor posture. Another example is that infants affected with Patau syndrome have several life-threatening abnormalities, caused by an extra 13th
Cleft Lip Research Paper
971 Words | 4 PagesThis is mostly called Trisomy 13 which is also called Patau syndrome which is an extra copy of the chromosome 13. This is a chromosomal condition associated with severe cerebral disability and physical abnormalities in many parts of the body. People that have or know someone with trisomy 13 often have heart defects, brain or vertebral irregularities, poorly developed eyes, extra digits , an opening in the lip which is known as cleft lip with or without an opening in the roof of the mouth that is a cleft palate, and weak muscle tone . Due to the actuality of several life-threatening medical complications, many babies with trisomy 13 pass away within their first days or weeks of their
Spinach Leaf Photosynthesis Lab Report
1169 Words | 5 PagesDoriana Spurrell What different frequencies and types of light would prompt the Spinach leaves to go through the process of photosynthesis effectively? Purpose: The purpose of this experiment was to see which of the four lights that range across the light spectrum would properly and most efficiently help the spinach leaf perform photosynthesis. Background Information: Photosynthesis is the process in which plants use light energy to transform into chemical energy.
Ap Biology Research Paper
1818 Words | 8 PagesThere is only one cell which is able to survive in total of four cell which then develops into a female gametophyte. The pollination occurs in female gametophyte. Fertilization occurs after successful pollination in which one sperm cell will meet with the egg and will make a diploid embryo which will be surrounded by seed coat of tissue from the parent
Nt1310 Lab 1
401 Words | 2 PagesDuring random fertilization, no gamete has a greater chance than the other with fusing together in sperm and zygote fusion. These processes contribute to the production of genetic variety because of the many opportunities of unique combinations, unlike the process of mitosis, in which identical daughter cells are always the
Nt1310 Unit 1 Writing Assignment
852 Words | 4 PagesThe stages of Meiosis II are: prophase II, metaphase II, anaphase II, and telophase II. Meiosis generates four haploid cells, which begins with the division of one diploid cell. Diploid means having two sets of chromosomes, and haploid means having half the number of genetic information as diploid (or one set). To begin, late interphase is the phase when the DNA in the diploid parent cell is replicated. Then, in prophase I, the chromatin condenses and the chromosomes become visible.
Cell Division Annotated Bibliography
370 Words | 2 PagesThe molecular basis surrounding this topic mentions its importance in research. The emphasis of the article is placed on the relative times of the respective stages and regulations undertaken. 2) This contemporary study focuses on mitosis. An important application of Cell Division,
Mitosis And Meiosis: Similarities And Differences
951 Words | 4 PagesDuring metaphase, the replicated chromosomes line up and attach to spindle fibers. However, in metaphase I in meiosis I, homologous pairs line up, form tetrads, and attach to spindle fibers, whereas in mitosis, the spindle fibers attach to replicated chromosomes. In addition, the process of mitosis only occurs once, but in meiosis there are two processes, meiosis I and meiosis II. The result of mitosis is two diploid daughter cells. However, the result of meiosis is 4 haploid daughter cells, since the processes in meiosis occurs twice.
Patau Syndrome Essay
434 Words | 2 PagesIn patau syndrome babies are born with only two less chromosomes (forty six instead of forty eight). These pairs are arranged in twenty three pairs of chromosomes. The children born with this have an extra copy of their thirteenth chromosome in every cell in their entire body. Patau syndrome is the most severe of all chromosomal abnormalities.
Garlic Root Tip Lab Report
1393 Words | 6 PagesIntroduction: This lab report outlines an experiment on the observation of mitosis in the cells of garlic root tips. Mitosis simply put is the division of a nucleus producing two daughter cells with the same number of chromosomes as the parent cell. Miotic cell division consists of five stages: Interphase, Prophase, Metaphase, Anaphase and Telophase. The purpose of this experimet was to identify and observe cells within each stage of mitosis using garlic root tip cells.
Garlic Mitosis Lab Report
1837 Words | 8 PagesEach of these daughter cells end up with the same genetic information as the parent cell. Mitosis is the foundation of asexual reproduction in many organisms. (University of Leicester,2014) During the course of this investigation, Köhler illumination was used which made it possible to follow the chromosomes progressing from prophase through to telophase as all the stages were found to occur in close proximity to each other. There are four stages of mitosis which collectively take approximately an hour to complete.
Varicocele Semen Analysis
811 Words | 4 Pages21 Fresh semen samples were diluted with phosphate-buffered saline (PBS) to 2x106 sperm/mL. Fifty µL were incubated with 100 µL lysing reagent for 15 seconds and then 2 mL of PI was added and mixed with tube. Tube acquisition was done by flowcytometry immediately after staining. The intensity of its emission corresponds to the DNA content. Flowcytometric analysis displays a constant and characteristic bimodal nonartifactual DNA pattern indicating the presence of two different populations. The main population is represented by a peak followed by a shoulder ("marginal population"), which represents a sperm group altered in the nuclear condensation, yielding unstable chromatin which appears more stainable with PI.
Examples Of Sympatric Speciation
1018 Words | 5 PagesPolyploidy is when an organism has more than twice the haploid number of chromosomes. The process of sympatric speciation begins when an offspring is born diploid, meaning it has twice the haploid number of chromosomes. For example, the common fruit fly ordinarily has eight chromosomes, whereas a diploid fruit fly has sixteen chromosomes. These organisms can then have offspring that are tetraploid and so on. It is impossible for organisms with different amount of chromosomes to mate with each other; a diploid organism cannot mate with a tetraploid organism, which creates reproductive isolation and in turn leads to evolution (Coyne 1).Isolation due to polyploidy is more common in plants than animals because plants can reproduce asexually while animals most often cannot.
Polyploidy Plant Experiment
956 Words | 4 Pages2) Will the diploid cells as well as polyploidy cells denature at a rapid pace? 3) Will the type of soil affect the results? 4) Will changing the position of the plants in the sunlight alter the results? 5) Would the plants grow better in a small or larger container? 6) Which type of polyploidy plants will work best with this type of investigation? 7) Should both plants contain the same number of chromosomes?
Complementarity In Human Genes
742 Words | 3 PagesThe degree of crossing-over between any two loci on a single chromosome is proportional to the distance between them (fig. X.13). Considering the positioning of dominant and recessive alleles of linked genes, two possibilities may occur. If two dominant alleles are linked together on one chromosome of the homologous pair and two recessive alleles are linked together on the second chromosome of the homologous pair , this arrangement is referred as cis or coupling. If, in homologous chromosomes, dominant allele is linked with recessive one, this arrangement is referred as trans or repulsion (fig.
The Importance Of Gender Selection
987 Words | 4 PagesThe ‘X’ sperm chromosomes are statistically longer and larger than ‘Y’ sperm chromosomes. The mean areas of ‘X’ sperm chromosome heads are found to be 6% larger than the ‘Y’ sperm chromosomes. The length of ‘X’ sperm chromosome head, neck and tail are significantly larger and longer than the ‘Y’ sperm chromosomes. The ‘X’ sperm contains approximately 3- 4% more genetic material than ‘Y’ sperm chromosomes. However, few studies reveal no distinguishing characteristics in dimensions observed between ‘X’ sperm chromosomes and ‘Y’ sperm
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