there must be some difference, because humans cannot get blood transfusions from animals.
2007-02-11 02:53:00 · 4 answers · asked by JeddaBear 3 in Science & Mathematics ➔ Biology
depends on the animal. If it is a crustacean, it is because their blood is copper based, and not iron based.
If it is a bird or a mammal, it will be antibodies.
Antibodies are also why many people cannot have blood transfusions from other humans.
There are two main factors as to why. There is a gene that has three main alleles. An allele is a different type of gene located at the same place on the chromosome.
There are three main Blood types, called A, B and O. These are caused by different alleles located at the same place. A and B are co-dominate. That means if you have one gene for A and one gene for B you will be AB. O is recessive. If you have one gene for A and one for O you will be A.
A blood type can get A or O blood transfusions. B blood type can get B or O blood transfusions. O can only get O transfusions.
The second type of antibody is Rhesus negative and Rhesus positive. They have to be careful on what blood types they give people.
While there are three main groups, they have identified over 600 blood groups in humans so far. Blood transfusions must take account of these before giving from one person to another.
And the same reason is why animals don't give blood to humans. The antigens are even more different, and would kill the recipient.
Hope that explains it all.
2007-02-11 03:00:23 · answer #1 · answered by whatotherway 7 · 2⤊ 0⤋
All species with blood have specific surface antigens on their blood cells and specific antibodies in their plasma. This is determined genetically, so of course the blood wouldn't be comaptible. For the same reason, that's why a human with blood type A can't receive from another human with blood type B.
2007-02-11 03:03:45 · answer #2 · answered by Niotulove 6 · 0⤊ 1⤋
well... it's just what is in the blood.
animal's blood has different cells than a humans.
2007-02-11 03:00:13 · answer #3 · answered by page starshiine.™ 4 · 0⤊ 1⤋
there is many differancesinthe blood. just like metablisom. dogs cant digest milk but we can. cats need certain minerals for there eye sight not to go away. we dont.
2007-02-11 03:02:29 · answer #4 · answered by jedi1medic 2 · 0⤊ 1⤋