The correct answer is that "the T cell enters a state of anergy".
The activation of T cells requires two signals: (1) antigen specific signal presented by an antigen presenting cell (either a macrophage or a dendritic cell) that activates t cell receptors and (2) co-stimulatory signals that is not antigen specific but rather found in the plasma membrane of the antigen presenting cell (i.e. CD28). In the absence of a co-stimulatory signal, the t cell will enter a state of anergy or the inability to produce an immune response toward an offending antigen.
Answer:
d. T
Explanation:
For a given DNA sequence, the array is represented as:
5'ATCCTGGACACTGTACCATCGGTACCAATCACAGGTCCTTACAGT 3'
And the premier; 5' GGACCTGTGA 3' attaches to the complementary base on the DNA sequence.
i.e.
5'ATCCTGGACACTGTACCATCGGTACCAATCACAGGTCCTTACAGT 3'
*AGTGTCCAGG
Thus, the first nucleotide that will be incorporated into the DNA will be T
