<h2>True </h2>
Explanation:
Blood types are determined by the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body
Some antigens can trigger a patient's immune system to attack the transfused blood, safe blood transfusions depend on careful blood typing and cross-matching
There are four major blood groups determined by the presence or absence of two antigens: A and B on the surface of red blood cells
In addition to the A and B antigens, there is a protein called the Rh factor, which can be either present or absent creating the 8 most common blood types which are A+,A-.B+,B-O+,O-,AB+,AB-
Blood type is inherited and it is determined by the blood type of both father and mother
Blood type helps in DNA fingerprinting and forensic science and plays an important role in determining blood relations or to identify the suspect
<span>The gradual change in a species over time is called e</span>volution
I think this happens when there is no gene flow or when the population is small. Small population, germ line mutation, beneficial mutation that gets into many progeny and is of high chance of luck. Genetic drift involves a process in which allele frequencies within a population change by chance only, as a result of sampling error from generation to generation. Genetic drift occurs mostly in small population since the infrequently occurring alleles face a greater chance of being lost.