Answer:
AB
Explanation:
Blood group is discovered by famous scientist Karl Landsteiner in the year 1990. Co-dominance is the expression of the two alleles in the heterozygotes. In AB type, the two different alleles are present and they are expressed.
However in ABO type, it is govern by three allele namely A, B and O type. If only the antigen A is present, it is called A blood type. When only B antigen is present it is called B blood type and when both A and B are present, it is called AB blood type. And if neither of the antigen are present, it is called the O blood type.
The allele O is of recessive to both the blood type A and B. So a person with O blood type have two copies of O allele. But however A and B blood type are dominant of O, a person with A blood type may have one of the two genotypes -- AO or AA. Similarly, with blood type B, the genotypes are BO or BB.
It can cause microevolution, or a change in allele frequencies over time, with fitness-increasing alleles becoming more common in the population over generations. It refers to how many offspring organisms of a particular genotype or phenotype leave in the next generation, relative to others in the group.
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Base pairing
Explanation:
DNA has strict base-pairing rules. Purine bases (A & G) pair with pyrimidine bases (C & T). And specifically, Cytosine pairs with Guanine while Adenine pairs with Thiamine.
This way during replication, the template strand enables the formation of a new strand that is the exact copy of the non-template strand, due to this base pairing. This biological 'rule' reduces the error rate during replication and ensures high integrity in producing exact copies of DNA.
Learn More:
For more on base-pairing check out;
brainly.com/question/1888873
brainly.com/question/11568295
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Answer:
The closest answer is;
An association of persons for the promotion of a common object
Explanation:
