Histone

For about three decades many scientists did not believe DNA contained genetic material because it was not seen as complex due to the fact not much was known about it yet, so many presumed proteins were the genetic material of life. It was not until scholars such as Frederick Griffith, Meselson-Stahl, James Watson, Francis Crick, Maurice Wilkins, Rosalind Franklin, Avery, McCarty, Erwin Chargaff and many more conducted experiments that would expose astonishing discovering that will lead to the…

Introduction: Herpes Labialis, also known as the cold sore, is characterized by painful clusters of clear blisters on or around the mouth, and is often accompanied with fever. The disease is usually caused by the virus HSV-1, or herpes simplex type 1, but can also be caused by HSV-2. In a previous study, it was found that 67.6% of Americans possessed antibodies for HSV-1, establishing HSV-1 as an exceptionally prevalent virus even in developed countries 9. The virus is spread through skin to…

Then, 100% - 60% = 40%. That would comprise both cytosine and guanine. Therefore, the percentage for cytosine is 20%. 4. How are chromosomes formed? Chromosomes are formed when the DNA are packed or coiled around the protein histones to get ready for its replication. 5. List the different proteins and enzymes taking part in DNA replication. Give the function of each in the replication process. The proteins and enzymes involved in the DNA replication process are: 1. DNA polymerase…

they act as antagonists of the adenosine receptor in the body and at the same time act as phosphodiesterase inhibitors thus preventing the degradation of cyclic Adenosine Monophosphate which is an intracellular chemical messenger; it also activates histones deacetylasein the nucleus, these reduces the transcription of pro-inflammatory genes and potentiates the effect of Corticosteroids. This can lead to a variety of physiological effects in the body, for example, bronchodilation and…

6F4Z1003- Genetics, Adaptation and Diversity Practical Report Section 1- Calculations and Pedigrees 1. In DNA extraction the proteins absorb light at 260nm and 280nm, especially the aromatic acids. 2. 250µg to nm, 250 x 1000 = 250,000ng. 3. 200ng/ml = 0.2µg/ml. 150µg/ml = 150,000µg/ml 250,000pg/µl = 250µg/ml 1mg/ml = 1000µg/ml ● 150,00µg/ml - HIGHEST CONCENTRATION OF DNA ● 1000µg/ml ● 250µg/ml ● 0.2µg/ml - LOWEST CONCENTRATION OF DNA 4. Sodium dodecyl sulphate is used as a…

sensitive biomarkers highlighting, clinical intervention is a great importance allowed by early pathological changes. The result of relations within environmental factors, epigenetic, and genetics is the progression of lung carcinoma initiation. Histone modification, DNA methylation, and non RNA expressions are included in Epigenetic alterations and have been reported widely in literature to play a major role in the genesis of lung cancer. Chronic inflammation, smoking, and drugs are the…

The American Institute of Stress states that women are twice as likely to experience major depression compared to men and three times as likely to suffer from anxiety or stress related disorders; most likely due to hormone level differences and a variation of genetic make-up. That being said, women already have a greater chance, statistically and under the previous idea of the human genome, to endure the effects of stress related disorders. However, recent research on a process known as…

Abstract: Have you ever gotten ridiculed by a friend, or maybe a family member, for eating something not so healthy? You might have heard this phrase more than once: You are what you eat. And it’s true! Eating habits are only a portion of the gigantic pool that determines DNA and the traits passed down to offspring/upcoming generations. This is called Behavioral Epigenetics. Through either psychological, physical, or emotional changes, everything we do, we think, or even the way we act and the…

My grandfather, who I was very close to, passed away from lung cancer. Watching his struggle with the disease started a lifelong desire to help cure cancer. My grandfather 's tumor was inoperable. Chemotherapy and radiation, meant to save him, only made him sicker and weaker. My family and I could only watch while he was constantly in pain. As part of my volunteering at the pediatric department, I played with pediatric cancer patients who had to stay in the hospital long-term and talked to…

. Broccoli belongs to the cruciferous vegetable family, which includes kale, cauliflower, Brussels sprouts, bok choy, cabbage, collard greens, rutabaga, and turnips. These nutrition powerhouses supply loads of nutrients for few calories. If you are trying to eat healthier, cruciferous vegetables like broccoli should be at the very top of your grocery list. If you or your kids are not big fans of broccoli, be sure to read the how to incorporate more broccoli into your diet section for tips and…