First aid sorry if I’m wrong
Answer:
Chromosomal inversion
Explanation:
Inversion is a type of mutation which occurs in the chromosome structure in which the chromosome region breaks at two points and the region between the break and rotates to 180°. The rotated region after rotation rejoins with the end of the chromosomes.
Sometimes these break occurs in the region of the gene and the inversion of the sequence of the gene proves a lethal mutation like in the case of haemophilia in humans.
Thus, Chromosomal inversion is the correct answer.
Thought is was 6, but here:
"insert a shunt into the ventricle to drain cerebrospinal fluid (to treat hydrocephalus)
insert a deep brain stimulator (DBS)
insert an intracranial pressure (ICP) monitor.
remove a sample of tissue cells (needle biopsy)
drain a blood clot (hematoma aspiration)
insert an endoscope to remove tumors."
sorry if this doesn't help or is not the answer you were looking for. good day mate!
The answer to your question is 1 billion