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Arianna Mason

46 Posts
Is Autism Genetic?

Is Autism Genetic?

The surge in autism diagnoses in recent decades has led to curiosity surrounding the biological origins of the condition. Some communities, especially those in the United States, have attributed the perceived increase in people with autism to environmental factors such as vaccines. However, this theory has proven false and researchers have since declared that autism is not on the rise. It seems that diagnoses are simply increasing along with increased awareness of the disorder. Somewhat obscured by all of the back and forth caused by misinformation, one question has been consistently posed: Is autism genetic? The Iffy Answer The answer to this question appears…
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The History of Genetic Counseling: Genes Under Inspection

The History of Genetic Counseling: Genes Under Inspection

Genetic counseling is a position in the medical field that involves counseling people who are or could be affected by a genetic disorder. Genetic counselors advise patients about genetic testing and the implications of being diagnosed with a condition. Though there have been some recent changes to the nature of the job such as the use of telehealth services and the increase in specialties, genetic counseling has existed in some form for a long time. Before the 1960s In an ancient Jewish text called The Talmud, mothers were advised to not have their sons circumcised if they had two previous sons that died of blood…
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DNA Vs. RNA: 3 Ways They Are Radically Different

DNA Vs. RNA: 3 Ways They Are Radically Different

DNA and RNA have similar names and are also both involved in the process of gene expression. This may make it difficult to know what the difference is between the two but there are a couple of key distinctions that people can use to help them better understand how they differ. DNA Is the Genetic Material DNA, or deoxyribonucleic acid, resides mostly in the nucleus which is a closed-off structure within the cell. From this area, DNA provides instructions on how to create things that help the body run. For example, the APOE gene, a region of DNA on chromosome 19,…
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The Strange History of Epilepsy

The Strange History of Epilepsy

Epilepsy, which causes seizures, is one of the most common types of neurological conditions. It can be caused by a combination of both genetic and environmental factors. However, there are instances in which the condition is caused by a single genetic mutation. Epilepsy-causing genetic changes can occur in genes like CDKL5 and FOXG1. Because there are many different causes, the condition has been common throughout history. Its presence in different regions and eras means that depictions of those that suffered from it vary greatly. Ancient Times One of the earlier known references to epilepsy-like symptoms appears in an Ancient Mesopotamian text called The Code Of Hammurabi that is believed to…
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Do Twins Run in Families? – Here Are the Facts

Do Twins Run in Families? – Here Are the Facts

In the United States alone, 114,161 sets of twins were born in 2021. The occurrence of twin births makes many people wonder whether there is a hereditary component to if twins run in families. The answer to this question really just depends. What Type of Twins Run In Families There are two types of twins: monozygotic and dizygotic. Monozygotic twins, or identical twins, occur as a result of a splitting of an already fertilized egg while dizygotic twins, or fraternal twins, occur when two individual eggs are fertilized separately. Current research shows that cases of monozygotic twins are random. However, some researchers believe…
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Two X Chromosomes: How Having Them Affects Your Health

Two X Chromosomes: How Having Them Affects Your Health

For the purposes of scientific and medical clarity, those born with two X chromosomes are referred to as biological females by researchers and medical personnel. There are other sex chromosome combinations that result in an individual being labeled a biological female such as the combinations XXX and XO. However, they are much rarer than an XX combination. Being a biological female indicates that an individual will receive a certain set of health advantages and disadvantages. Protection Against Certain Genetic Disorders The presence of two X chromosomes in someone’s cells provides that person with a higher level of genetic diversity than…
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How Are Genes Expressed?: A Quick and Easy Explanation

How Are Genes Expressed?: A Quick and Easy Explanation

Genes are often spoken about in academia and in pop culture. The word is one of the few pieces of science jargon that have made their way into common vernacular. However, most people are unaware of exactly how genes are able to influence all of our characteristics. Genes Are Made of DNA Genes are sections of DNA that can be read by the cells and are generally contained in the nucleus. These sections of DNA consist of four different types of molecules called nucleotides. The nucleotides are represented by A’s, T’s, C’s, and G’s. Two corresponding strands of DNA use…
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The Untold Story of the Man Who Discovered DNA

The Untold Story of the Man Who Discovered DNA

The discovery of DNA is often attributed to the famous duo, Watson and Crick. Though James Watson and Francis Crick were partially responsible for uncovering the structure of DNA, the discovery of the molecule itself is the achievement of a single researcher. This researcher, biochemist Friedrich Miescher, often goes unmentioned in conversations about great scientists. However, the impact that his work had on those in the field of genetics is nearly unmatched. Friedrich Miescher was born in Basel, Switzerland in 1844. Once Miescher completed his medical studies, he began working in the lab of Felix Hoppe-Seyler. Hoppe-Seyler is often referred to as the “founding…
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Neanderthal DNA in Humans: Weird Parts of the Genome

Neanderthal DNA in Humans: Weird Parts of the Genome

The Neanderthals were a prehistoric species of humans that existed from about 400,000 years ago to about 40,000 years ago. They lived in Europe and Asia and, as a result, encountered modern-day humans as they migrated out of Africa about 55,000 years ago. In the past, scientists have wondered whether conflict with modern-day humans, also known as Homo sapiens, is what led to the extinction of Neanderthals. However, some theorize that Homo Sapiens may have absorbed them into their population by interbreeding with them. Whatever the reason for their extinction, interbreeding still occurred between the two species. And now, some living humans have genomes that…
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Habsburg Jaw: A Royal Affliction

Habsburg Jaw: A Royal Affliction

The term "Habsburg jaw" references a jaw deformity present in many members of a German royal family collectively known as the Habsburgs. The deformity is believed to be a combination of two conditions that may share the same genetic causes. These conditions are mandibular prognathism and maxillary deficiency. Mandibular prognathism is a protrusion of the lower jaw while maxillary deficiency is an underdevelopment of the upper jaw. The severity of these conditions within the Habsburg family is thought to be the result of the inbreeding that they practiced in order to retain their power. Typically, inbreeding causes certain traits because it increases the likelihood that anyone who is the result…
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