What is the abo blood classification based on? a. antibody on the red blood cell b. antigen in the blood c. antigen on the red blood cell d. hemoglobin in the blood

The correct answer is C) Antigen on the Red blood cell.

The classification of ABO blood grouping is based on the presence of corpus Antigen on the surface of red blood cells.

There are four blood types (A, B, AB, O) in this classification that are determined by three alleles of ABO gene in a population.

On the surface of RBA, blood type A has Antigen A, blood type B has Antigen B, and blood type O has no antigen.

Thus, C) is the right answer.

The ABO blood group is classified on the basis of antigen present on the surface of red blood cells.

Further Explanation:

A blood group system or ABO blood groups are classified on the basis of the inherited characteristics of the erythrocytes (red blood cell). It is determined by the presence of type A and type B antigen on the surface red cells. On the basis of that, the individual may have type A, B, O and AB blood group.

The blood groups were first discovered by Karl Landsteiner in 1901. He was an Austrian immunologist. The people with type A antigen will have type B antibodies in their serum. If type A blood is transfused to the individual with type B blood group, the blood will show coagulation because type B antigen will react with type B antibodies. The individual with type O blood group does not possess both types of antigen, whereas type AB possesses both the antigens. Blood group O is the most commonly occurring blood group type across the world.

Learn More:

1. Learn more about the treatment of eukaryotic cell with a drug

2. Learn more about the proteins synthesis in a cell

3. Learn more about an exchange of gases by blood cells

Answer Details:

Grade: High school

Subject: Biology

Chapter: Blood cells

Keywords:

Blood, group, inherited, characteristic, erythrocyte, antigen, antibodies, immunologist, transfused, coagulation, discovered, world.

transcription is a process in which information is rewritten. it is something our cells must do, in a more specialized and narrowly defined way. in biology, transcription is the process of copying out the dna sequence of a gene in the similar alphabet of rna. it needs to happen in the nucleus because that's where the dna is. dna is always inside the nucleus unless the cell is dividing.

transcription is the first step in gene expression, which involves copying a gene's dna sequence to make an rna molecule. transcription is performed by rna polymerases. it has three stages: initiation, elongation, and termination. rna molecules must be processed after transcription in eukaryotes.

explanation:

long version:

the protein synthesis consists two processes which are, transcription and translation. transcription takes place in the nucleus. it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. transcription is the first part of the central dogma of molecular biology: dna → rna. it is the transfer of genetic instructions in dna to messenger rna (mrna). during transcription, a strand of mrna is made that is complementary to a strand of dna.  

these three stages are:

  initiation: in which   is the beginning of transcription.occuring when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

    elongation: in which is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

    termination: in which is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

digestion

it excretes wastes