<span>It
is important that antibodies have a symmetrical quaternary structure to create
two identical binding sites for antigens. An antibody is a relatively large
protein having a Y-shape. Plasma cells produce antibodies which are then used
by the immune system to fight off pathogens (e.g. bacteria and virus). The antibody
is able to recognize the antigen of the pathogen. It binds with it either to
neutralize it directly or “tag” the microbe for future attack by other parts of
the immune system. </span>
Answer:
D. A base substitution in gametes during meiosis
Explanation:
Answer:
Sperm and egg have 23 the number of chromosomes as a body cell.
Hope this helps =)
Answer:
If both parents have sickle cell anemia then the individual will be effected with
sickle cell anemia disease.
Explanation:
It is genetic disease which run in a famalies in an autosomal way.If one parent have sickle cell anemia and other dont then the pregnacy will have 25% of risk and if one Parent have a sickle cell anemia and other have sickle cell trait then the pregnancy will have 50% of chances to be effected.A person having sickle cell trait is that who is not effected with sickle cell anemia and dont have the symptoms of disease but in future if the other parent also have same trait then the pregnancy will be effected.Sickle cell anemia triat is having gene S while normal person have Beta gene.
This disease is common in african desents.
