Answer:
A which is coal ok tell me if I am right
<u>Answer:</u>
<em>Cluster of neurons cell bodies in the thalamus is called nucleus.
</em>
<u>Explanation:</u>
Nuclei are present all various points in the central nervous system and are connected to each other through various tracts. Thalamus is a part of the brain and contains different type of nuclei.
<em>They are relay nuclei, association thalami nuclei and non-specific nuclei.
</em>
Association thalami nuclei receives the highest input from the cerebral cortex. Non-specific nuclei plays a significant role in regulating sleep and wake cycles.
Answer:
Both aneuploidies and trisomies are the result of nondisjunction of the homologous chromosomes during meiosis. The error in the mechanism of chromosome segregation produces two daughter cells, one of them with two homologous chromosomes and the other one without
