Karyotypes were first performed using blood samples taken from youngsters and adults. Later, a pre- birth process called amniocentesis was developed which allowed medical researchers to obtain samples of cells from extraembryonic fluid located in the amniotic sac, which surrounds an unborn child.
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A red blood cell placed in pure water would "BURST"
This is because water would move in the red blood cell and become hypotonic. It does not have enough space so thats why it bursts.
The radius of the circle would be 7.42in
C. Macrophages
When Macrophages approach a foreign pathogen they ingest the pathogens through phagocytosis, the Macrophages show the foreign antigen proteins on their cell surfaces.
The Helper T Cell recognizes the antigen on the surface of the macrophage and starts an immune response to the invading pathogen by sending out a chemical message
After that the B-cells produce antibodies that are specific to the antigens of the pathogens that slow them down so the macrophages can engulf them.
Autosomal recessive trait
autosomal dominate trait
x linked recessive trait
x linked dominate trait
y linked recessive trait
y linked dominate trait
