Answer:
A. The mutation may cause phenotypic change.
Explanation:
Your answer should be A.
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Answer:
Clonal selection can be defined as methods or processes that shows(describes) tthe way lymphocytes do react or respond to the various different types of antigens present in a particular body. Clonal selection is of the notion that lymphocytes are taken during antigen presentation .
Explanation:
Clonal selection is important as it is sometimes used during negative selection during T cell maturation. it is believe to be a major cause mutations of antigen-binding affinity in memory cells during clonal expansion .
Answer:
b. primary motor cortex
Explanation:
The white matter motor pathway is the the corticospinal pathway. This pathway begins at cerebral cortex and ends on interneurons present in spinal cord and lower motor neurons. The pathway controls the limb and trunk movement in the body. There are around one million myelinated neurons in corticospinal track.
The tract also includes premotor areas and primary somatosensory cortex. The neurons mostly begin in primary motor cortex area of the brain. Thus, option B is correct.
Answer:
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Explanation:
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