Which of the following is the decrease in the conditioned response when the unconditioned stimulus is no longer presented with the conditioned stimulus? Question 21 options:
acquisition
extinction
reflex
recovery

Extinction

Explanation:

Extinction can be defined as the condition in which there is a gradual weakening of the response( conditioned) that results in decreasing the response.

Example: Suppose a dog is taught to shake hands and one no longer appreciates the behavior or asks the dog to shake hands then the dog will stop responding to the responses.

This is known as the extinction of the behavior.

Extinction.

Explanation:

The conditioning learning depends on the stimulus and its presence in the environment. The conditioned learning was first explained by the Pavlov while working on the dog salivation experiment.

The extinction is the condition when the stimulus become weak and its response gradually decreases with time. The conditioned response will decrease and ultimately gets decreases in the absence of the of the unconditioned stimulus.

Thus, the answer is extinction.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

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.