Sugar – The Truth

Among fitness expert’s common concerns is that just as many people aren’t aware of the hidden dangers posed by excessive sugar consumption.

Would it surprise you to learn the most common addiction is today’s society is sugar? Sadly, society views a sugar addiction as harmless. A few people realize they are addicted to sugar and make little jokes like, “Gotta satisfy my sweet tooth”. They crave sweet foods like alcoholics crave beer.

Research conducted using laboratory rats determined that behaviourally, sugar acted very similar to narcotics in the brain. Continue reading Sugar – The Truth

The History of MtDNA and the Story of Mitochondrial Eve

The History of MtDNA and the Story of Mitochondrial Eve

Mitochondrial DNA (or mtDNA) is the DNA we inherit from our Mothers, and is held in a unique circular strand in small tubular packets known as mitochondria that function in a similar way to batteries in the cytoplasm of cells. If you were to trace the matrilineal line all the way back to the most recent common ancestor you’d reach the DNA of Mitochondrial Eve. Continue reading The History of MtDNA and the Story of Mitochondrial Eve

Eclipses and How They Occur

What is an eclipse and how does one occur? This is quite a common question and today it is possible to observe and understand these phenomena better as we have some amazing tools to study them.

Myths and fears

There was a time when eclipses were regarded with fear and apprehension. Even today, there are some cultures of the world where one of these amazing phenomena is considered an unholy celestial event with satanic overtones.

It was not until Galileo invented his telescope that people began to look upon these events in a new light. Continue reading Eclipses and How They Occur

The History of Y-DNA and Y-Chromosomal Adam

Y-Chromosome DNA or Y-DNA is the DNA carried down the direct paternal line, and the DNA that belongs to males only. Y-DNA is inherited from a man’s father, who got his Y-DNA from his father, all the way back to the end of the line. Y-DNA is only inherited through that direct line, and therefore not inherited from an individual’s mother’s father.

In humans, the Y-DNA chromosome spans around 58 million base pairs, which results in it representing approximately 2% of the total DNA in a male cell. Continue reading The History of Y-DNA and Y-Chromosomal Adam

How to Use a Micropipette?

Micropipette is a laboratory equipment piece designed to transfer extremely small amounts of liquid. This equipment is as common as the microscope and has it’s applications in analytical chemistry and micro biology besides being used in medical laboratories. This is used to transfer anywhere between 1 to 1000 micro litres of liquid. That is a small amount of liquid and thus requires a pipette with a great deal of accuracy and precision. In addition it also requires a skilled technician to operate the pipette as the slightest error can cause the reading to differer drastically (specially true for micro pipette since dealing with small amount of liquid). Continue reading How to Use a Micropipette?

What Types of Microscopes Are There?

There are various types of microscopes that are majorly used in the light or beam microscopy. These among other popular types include, but not limited to the following: handheld or pocket microscopes, digital, stereo, and compound microscopes. Among the alongside mentioned types, it is important to know that there are those that are used for both personal hobby as well as class work. On the other hand, there are also those that can be used for biological purposes.

Other than the light microscopes, it is equally imperative to mention about the electron microscopy, whose developments are always very exciting especially when it gets to scanning the objects and/or images.

Below is the description of some of the most common microscope types:

Compound light

This is one type of microscope with two eye pieces (binocular). Continue reading What Types of Microscopes Are There?