Biology Essays

The reason is that it results in the slow-down of adding new monomers onto the microtubule ends. Research comprising intrinsic cell lengths shows that there was a faster spoilage rate in microtubules that nucleated at angles perpendicular to the cell boundaries.

Photosynthesis relates to the process through which green plants and other specific organisms use sunlight in synthesizing carbohydrates from water and carbon dioxide. The process occurs in three imperative stages including harnessing sunlight energy, synthesizing NADPH and ATP using energy harnessed, with the last step being Calvin cycle involving CO2 fixation

This report aimed at determining the effects of both interspecific and intraspecific forms of competition on total yield, survival and individual growth of two plants. Several materials including plant pots, planting trays, potting soil as well as seeds from radish and wheat were used. Seeds were subjected to light and temperature controlled chambers.

This came with a price to it. There became increased cases of health risks to the consumers of the sugar. This included cases of the consumers suffering from diseases such as diabetes and caries. With a lot of

A human embryo is the inception of the human form. Thus, from this line of argument, the human embryo is an integral stage of the person’s development. In this point of view, it could be treated as a person. It is, therefore, a thing of value because it involves the very existence of a person, in fact, the vital stage at the beginning of life.  

Gestational diabetes is one of the three major types of diabetes, along with type 1 and 2 diabetes. Diabetes is a chronic disease characterized by elevation of blood sugar levels above normal range and a woman who manifests diabetes at the start of or during pregnancy has a condition called gestational diabetes (A.D.A.M. Medical Encyclopedia, n.p.).

2 – The starting point of the practical was the purification of RNA from SW480 human cells. The sample (F) which was mine had a concentration of 308 ng/ μL. This was the

f a stem cell therapy, and this is equally part of my motive for addressing this letter to you in an attempt to shed some light on stem cells, and their implication on the kind of therapy you are going to receive. It is thus interesting to inform you that this letter is going to

The author of the paper states that chromatography can be used to distinguish between different biomolecules based on their chemical properties and weight of the molecule. Paper chromatography is mainly used for the separation of molecules and consists of cellulose with hydrophilic characteristics.

Based on the climatic conditions, the Earth planet is divided into different climatic zones encompassing the frigid zone, where the land is covered with snow for the most part of the year; the temperate zone where mild or moderate climate occurs and the tropical zone where the climate is very hot and wet.

This level of industrialization and development is of course compounded by the fact that humanity itself has no natural occurring

Oncogenes are genes that could potentially result in cancer and are expressed in high amounts in tumor cells. The majority of normal cells go through apoptosis, a process that is curtailed by activated oncogenes, causing them to survive and proliferate (Hanahan & Weinberg 2011, p. 654). To cause cancer, oncogenes need another step, such as viral infections or mutations.

nt features: (1) the effects that will enable the process to continue for many generations and (2) enough RNA antisense and sense preparations to trigger interference (Fire et al., 807). For instance, the above observation is crucial in understanding the interference in that

This essay will discuss the importance of photosynthetic process to human beings. To start with, the photosynthetic process utilizes a small

In addition, the birds do not moult in time for energy-demanding period (Norris and Lopez: 44). The consequence of anisogamy is that it creates sexual competition and conflict. For example,

In chapter one, the author seeks to cement the argument that creation is a hoax and that evolution is the reason humans exist. Using the term improbable mountain, Dawkins uses several scenarios to underline the assertions that just because some

The six national parks which constitute the Madagascar Rainforest of Atsinanana are: Marojejy, Masaola, Zahamena, Ranomafana, Andrigitra and Andohahela. These remnant Rainforest areas are marked in Fig 1. above as red

Down syndrome can be diagnosed at birth: the doctor can look at the appearance of the baby or listen to the baby’s chest using a stethoscope. A blood test can also be done to confirm the diagnosis by checking the extra chromosome. I chose a

The ACh dependant response of the muscarinic receptors is mediated through GTP binding proteins. In the M1, M3 and M5 subtypes, the Gq family of G-proteins is involved in the activation of

Consequently, these features that the plant developed purely for survival have resulted in it having a number of byproducts in its flowers, latex, leaf, roots, and stems. These products include

Cervical cancer is most frequently diagnosed in women between the ages of 35 and 44 with the average age at diagnosis being 50. It rarely develops in women younger than 20. Many older women do not realize that the risk of developing cervical cancer is still present as they age.

Given the opportunity to study in the United States is a dream come true since one acknowledges that specialized endeavors, such as bioinformatics, are more advanced than what educational institutions in Saudi Arabia could offer. In addition, one

ine and which when worn would help prevent motion sickness and thereby help the astronauts to perform their duties efficiently and without any problem and in this way save precious time while in space.The drug has proved to be efficient in controlling motion sickness (Nachum et

Circulation is movement of blood through the blood vessels in the body to and from the heart. Both components are related in that CO2 is a waste product that has to be eliminated from the body through the process of respiration. Other waste products such as dead

A daughter giving birth to a child formed from the frozen embryo of her own mother might, by law, be giving birth to her son, but practically or religiously, she is giving birth to her biological

For example, Dr. Natalia Komaroa models the inactivation of APC tumour suppressor gene, the initiating event in colon cancer, for estimating the

The synthesis process instigates on the initial day with the development of the proerythroblast that is followed on the second day with the formation of the hemopoietic as the nucleus condense. The third day the polychromatophilic erythroblast

The disorder was discovered between the year 1950 and the year 1970 and is a psychiatric disorder, not a biological problem. Psychological response to environmental factors is the cause of the disorder that is currently managed by medications. There is,

The bottleneck effect type of genetic drift results from a pressure that reduces a population’s size before the population increases again. The overall impact of the bottleneck effect is a convergence in genetic differences that is retained as

In contrast, the transformations in the current, evolving world have changed the whole scenario. In general, this is clearly depicted by concepts such as ergonomics,

Prior research has reported that the influence of soil variability and the crop performance is extremely pronounces in regions of the tropical (Moorman, 2005). In

The #1 exercise focuses on the fact that exercise boosts brain power. It has been noted that the brain evolved under conditions that are relatively constant motion. In regard to this, it could be predicted that the optimal environment for information processing might include motion. This is what anybody is able to find. It is also pointed out that the appropriate business meeting could have everybody walk for approximately 1.8 miles per hour.

Therefore, the generations of resistant bacteria continue though natural selection. One fundamental trend that promote antibiotic resistance is repeated use if

tic influenced my interest in genetics with the aim of becoming an expert who can one day develop strategies for treating or managing genetic disorders. The experience and interest has played an important role in shaping my understanding from the materials. Based on my

The observations made by the researchers were the major reasons that made them to perform the experiment using the four weeks old male-KK-A mice. Also, this observation was key element to help the researchers determine what they want to find out specifically before

Photo51 shows a pattern that was used to outline adenine-thymidine and guanine-cytosine in Watson and Crick model. There was a scientific discovery that could explain how hereditary work (Anholt & Mackay 51). The Photo51 had crucial information that indicated the diameter of the DNA molecule to be 2.0 nanometers.

Research about stem cell, especially research on embryonic stem cell may offer remedies for the grievous diseases, also poses numerous controversial and difficult moral questions. This is mirrored in many numbers of regulatory regimes and moral perspectives that are already pursued or in the stages of being developed in EU Member nations.

Cells are usually encapsulated, arranged as singles or in pairs. Colonies on the surface of cultures appear smooth, entire, convex, opaque and light buff coloured. Deeply situated colonies are larger and lenticular (Bryant et al., 18). Electron microscopic observations show an accumulation of lightly stained carbohydrates in its cytoplasm (Lou et al., 1486).

The Lysosome is responsible for destruction and non-functional cellular molecules. In addition, it ensures that such molecules are recycled to function well in a given condition. For instance, when some proteins and other molecules like lipids and carbohydrates are through with their work, they are broken down inside the Lysosomes

Studies conducted under the aegis of the Centers for Disease Control and Prevention (CDC) demonstrate that, in the United States, “9 million persons each year have a foodborne illness

This is unlike other plants that show seasonal growth trends characterized by observable skips in a total population where there is room for alteration of shape and size as they respond to changes in density. Because of these above features, the two plant species remain to be most ideal for population growth experiments. 

The spatial organization of Myosin Heavy Chain genes does not portray the temporal expression patterns compared to the homeobox genes and globin. Basically, the Myosin Heavy Chain-embryonic and Myosin Heavy Chain-perinatal are divided by three genes. This arrangement portrays the conservation of sequence among the sequences that are human coding.

Stage one is the construction of chimeric that forms of a humanized IgG mAb-Pertuzumab through critical suppression of cancerous cells. In stage two, humanization

More so, good practices of the laboratory were taken into consideration in the event of operating equipment from the laboratory. All the necessary material was thereafter

Since the flies are unrelated, it implies that both flies have genes on separate chromosomes in each fly. Thus, they are homozygous across their genome. When they are crossed, we find that they are identical to each other with heterozygous genomes. 2 chromosome pairs are equal to 22 combinations of gametes.

The elements comprised of motion, lighting and composition. The motion produced the desired photographic conditions that make the film interesting and catchy. Lighting was vital to create mood and effects concerning

The author states that microbes can be classified into various groups depending on their morphological and biochemical features. The Lancefield grouping is a method of clustering catalase-negative, coagulase-negative bacteria according to the carbohydrate structure of bacterial antigens present on their cell walls.

In most cases, the host by releasing appropriate antibodies against the parasite has been able to counter the pathogenic parasites especially if done in time as the case of the Eosinophil recruitment against extracellular helminths where the limitation of stage development necessitates destruction in the early larval stage of the helminths. 

All the female politicians holding reputable positions in their governments are, therefore, evidence that women are capable of political leadership. Most of these female politicians have performed impeccably in their roles, through their power of skilled decision-making. This signifies that more women in politics would possibly lead to more positive changes in their countries.

Malaria is a disease that is caused by four parasitic Protozoans species belonging to the genus Plasmodium. The disease is classified as vector-borne due to its transmission in vertebrates through bites from infected mosquitoes. The name Malaria was coined from the Medieval Italian ‘mala aria’ - bad air. The name is due to the then belief that the disease was caused by bad-smelling air.