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RHESUS FACTOR AND BLOOD GROUP Last time, we discussed how to classify blood groups into A, B, AB and O. But, there's still something that's missing; we all notice that this so-called alphabets used to represent blood groups either end with "+ve" or "-ve" denoting positive or negative. This is known as the "RHESUS FACTOR". A person's blood can either be Rhesus positive (Rh+) or Rhesus negative (Rh-) which is known as our Rhesus factor and this is found out by testing our blood samples against a serum known as "Anti-Rh serum". On contact, if they clump, the blood is Rhesus-positive (Rh+), if they don't clump, the blood is Rhesus-negative (Rh-). For instance, a person belongs to blood group A and his/her Rhesus factor is Rh+, this implies that if the person goes for a blood group test, it will appear as A+ve. Have a nice day!!!
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Goodday guys, this time around, we shall be discussing genetics and our focus would be reading blood groups. (This has been posted on our WhatsApp group as a presentation before now. Please ensure to leave your comments in the comments and join the WhatsApp group; here's the link: https://chat.whatsapp.com/JnowhI7aTAoHfFkD9cNZRL ) Genetics is the branch of biology that deals with the transmission and variation of inherited characteristics of particular chromosomes and DNA. So, how do we get to read blood groups? We shall be discussing that. The blood is claasified into four distinct groups: A, B, AB and O which is in relation to the antigens and antibodies found in the blood. Now, what do we understand by Antigens and Antibodies? Antibodies are found in the plasma while Antigens are found on the surface of the red blood cells. Antigens can either be A or B while antibodies can either be anti-a or anti-b. Let us take note that if Antigen A is present in a blood sam...
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Visual Human Anatomy. & Body's Facts. *A SUMMARY OF HUMAN BIOLOGY* 1: Number of Bones *206* 2: Number of Muscles *639* 3: Number of Kidneys *2* 4: Number of Milk Teeth *20* 5: Number of Ribs *24 (12 pair)* 6: Number of Heart Chamber *4* 7: Largest artery *Aorta* 8: Normal blood pressure * 120/80 mmHg* 9: Ph of Blood *7.4* 10: Number of vertebrae in the Spine *33* 11: Number of vertebrae in the Neck *7* 12: Number of Bones in Middle Ear *6* 13: Number of Bones in Face *14* 14: Number of Bones in Skull *22* 15: Number of Bones in Chest *25* 16: Number of Bones in Arms *6* 17: Number of Muscles in Human Arm *72* 18: Number of Pumps in Heart *2* 19: Largest Organ *Skin* 20: Largest gland *Liver* 21: Biggest cell *female Ovum* 22: Smallest cell *male Sperm* 23: Smallest Bone *Stapes* 24: First transplanted Organ *kidney* 25: Average length of Small Intestine *7m* 26: Average length of Large Intestine *1.5m* 27: Average weight of new Born baby *2.6kg* 28...
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Gravity.

Which is the best explanation for the earth's gravity?.... If mass was responsible for the effects of gravity, this means that a more massive object's stronger attraction to the earth's mass, would fall faster then any less massive objects, when we know that this does not happen. Because all objects have to fall at the same rate of speed regardless of their mass... Where it is actually reverse gravity (centrifugal force) that neutralizes gravity's acceleration on an object, causing all objects to fall at the same rate of speed, regardless of their mass (which better conforms with experiments)...  Whenever we are in a fast traveling vehicle and it changes its direction of travel, we always experience a force. This is why we experience a force with centrifugal force because its rotation is "a constant change of direction", which creates a constant force (reverse gravity). Drafted: Alan Halonen.
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Motion: Physics.

Good evening, pals. We'll be discussing motion this evening. Motion, in physics refers to the change in position of a body with respect to its environment in a given period of time. Motion, as we all know, occurs everyday and is part and parcel of us. Terms used in defining motion-: distance, displacement, velocity, speed, acceleration and time. DISTANCE is the space moved by a body from one place to another regardless of direction. For instance, I could walk 5m from a point A and finally stop at a point X while another body, having started from the same point and moved the same distance could stop at a point P. Although we moved the same distance from the same starting point, our final destinations weren't the same because we went in different directions. Displacement is simply distance moved in a specific direction. For instance, "a boy walked 5m north" is not the same thing as "a boy walked 5m". Displacement always deals with a specific direction whic...
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Introductory to Science.

I'm Uthman Balogun and I would like to catch your  attention for a few minutes. Science as a whole: When we really look at science from a critical perspective, we discover that science itself is everything but nothing. Science explains everything but yet, we realize everything was created from nothing. Numerous religions have claimed different gods as the creator and ruler of the universe. However, it's really not comprehensible how the whole universe could exist without a creator. How we go about it is what has caused diversities in religion. We'll be discussing science on this blog and we'll be heartily devoted to understanding Science. Yours faithfully, Uthman227.
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