No. The T-cell has surface receptors made of proteins that are COMPLEMENTARY to only ONE SPECIFIC antigen due to the specific sequence of amino acids resulting in a specific tertiary structure of the protein. Thus, the T cell will only recognise the antigen it’s receptors are complementary to.
There are many factors that can contribute to this, for instance:
- Increase in food
- Decrease in predators
- Decrease in competition
All of these would allow a species to strive and grow.
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Answer:
If an X-linked mutation results in the absence of a certain protein, a cell which has inactivated the wild-type, X-chromosome will experience problems from the protein absence, possibly resulting in growth disadvantage of that cell, or even cell death, which will result in selection against mutant cells
Explanation:
the opposite make an attraction like positive and negative , and negative and positive. if it was negative and negative or positive and positive it wouldn't make an attraction.