Not that I could see, although they can reword and combine areas together I suppose who knows!
Could anybody enlighten me on SCID? Seems to have bypassed my notes..
SCID- Severe Combine Immunodeficiency
From what I know, this disease prevents an enzyme (ADA or adenosine deaminase) to be produced which destroys toxins that normally kills white blood cells. Patients are held in sterile conditions to prevent the transmission of infections.
Could anybody enlighten me on SCID? Seems to have bypassed my notes..
well hello there,
Severe combined immuno deficiency is caused by a defect in the gene for the enzyme that destroys toxins of white blood cells. It is inherited.
Sufferers do not show cell mediated immune response and do not produce antibodies
These are those people that have to live in bubbles that are sterile (isolation tents) and they inject the enzyme.
You can treat it by isolating the normal gene using restriction enzymes and then inserting it into the T cells of the patient using retro viruses that inject DNA into the cells Then put the transformed T cells back into the person
It's effective because it can prevent us from encountering harmful stimuli. Happens via the nervous system where transmission is rapid.
Give the differences between the hormonal and nervous system
Fs it made me type this twice lol
Remember to include the 3 neurones sensory relay and motor, also that the co-ordinator is the spinal cord. Also that it is effective from birth, involuntary and it has a short neurone pathway and few synapses.
Hormonal Communication via hormones Transmission blood stream, slow as It travels to ALL parts of the body not just to specific target organs Response is slow, widespread and long lasting Effects may be permanent and irreversible
Nervous system Communication via nerve impulses Transmission neurones, rapid as only travels to specific parts of the body Response is rapid short lived localise Effects may be temporary and reversible
pg 157 in NT book it talks about the growth factors being made by ALL CELLS located in the plant, but i thought IAA was only produced by the growing tip??? Please help
They are in all growing regions on the plant
IAA is a type of growth factor - the only one we need to know about. So if they asked where IAA could be found you would say tip. But if they asked where growth factors could be found you would say growing regions (which i doubt they would ask because meh..)
Can anyone explain q6cii) on June 2010. Why is it a tumour surpressor gene becoming inactivated and not a protooncogene?
Both tumor suppressor gene has to be mutated in order to express the mutated allele, i think maybe cause it is a recessive. Hence has to be homozygous.
Not that I could see, although they can reword and combine areas together I suppose who knows!
Could anybody enlighten me on SCID? Seems to have bypassed my notes..
Scid are known as bubble babies Basically its a rare inherited disorder in which the sufferer shows no cell mediated immune response, they don't produce there own antibodies, The normal ADA gene from healthy human is isolated from healthy human tissue using restriction endonuclease, ADA gene is inserted into a retrovirus, retrovirus is then grown with host cells in the lab to increase there number and are then mixed with the patients T-cells, retrovirus injects a copy of the ADA gene into the T-cells, T-cells arte reintroduced into the patients blood and now provide the genetic code needed to make ADA
Could someone clarify.... Is kinesis and increase in random movements? Does that mean when they are in an unpleasnt environment they move more and rapidly change direction to find a more pleasant environment? thanks
Scid are known as bubble babies Basically its a rare inherited disorder in which the sufferer shows no cell mediated immune response, they don't produce there own antibodies, The normal ADA gene from healthy human is isolated from healthy human tissue using restriction endonuclease, ADA gene is inserted into a retrovirus, retrovirus is then grown with host cells in the lab to increase there number and are then mixed with the patients T-cells, retrovirus injects a copy of the ADA gene into the T-cells, T-cells arte reintroduced into the patients blood and now provide the genetic code needed to make ADA
Could someone clarify.... Is kinesis and increase in random movements? Does that mean when they are in an unpleasnt environment they move more and rapidly change direction to find a more pleasant environment? thanks
If they are in unpleasant environments, they do not rapidly change direction. They change direction less frequently.
If they are in pleasant environments, they then rapidly change direction which causes the organism to remain in the same place.