Aresearcher has decided to lesion different parts of a cat’s brain and observe the effects on the cat’s behavior. after the surgery, the researcher notices that the cat is having trouble walking in a straight line. the cat also does not respond to the researcher randomly blowing a whistle like it did before the surgery. the researcher also noted that the cat’s sleep/wake cycle has changed since the surgery. what part of the brain did the researcher most likely lesion?

reticular formation

Explanation:

In brief this region controls the following :

1. somatic motor control

2. cardiovascular control

3. sleep

4. consciousness

5. habituation

6. pain modulation

Since the cat is having problems with the sleep-wake cycle, does not respond to the researcher, there is a change in behavior and inability to walk on straight line. This points out to damage in the reticular formation.

50% lit on the left side

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set