The transfers of motor, sensory, and cognitive information between the brain hemispheres is facilitated by the major neural connection between the right and left hemispheres of the human brain. This "bridge" is called the:

Corpus callosum

Explanation:

The Corpus callosum is situated in the center of the brain and acts as a bridge connecting the right and left hemispheres with 200 million nerve fibres.

Right hemisphere is responsible for managing the body's left side and is the brain's more innovative and imaginative side. Left Hemisphere is responsible for manipulating the body's right side, which is the brain's more intellectual which rational side. Corpus callosum form a bridge between the two hemismphere of brain and tends to be capable of developing alternate routes and thereby maintaining contact between two hemispheres of the brain.

Hence, the correct option is Corpus callosum.

the real answer is b. scintillation counter

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.