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NEET2013ZoologyMolecular Basis of InheritanceActual

Which of the following best illustrates "feedback" in development?

Options

  1. ATissue X secretes RNA which changes the development of tissue Y.
  2. BAs tissue X develops, it secretes enzymes that inhibit the development of tissue Y .
  3. CAs tissue X develops, it secretes something that induces tissue Y to develop.
  4. DAs tissue X develops, it secretes something that slows down the growth of tissue Y.

Correct answer

C. As tissue X develops, it secretes something that induces tissue Y to develop.

Step-by-step solution

As tissue X develops, it secrets something that induce tissue Y to develop indicating positive feedback mechanism. Related Theory Feedback mechanism is the mechanism of the body to maintain the levels of hormones in the body in the desired limits. An increase or decrease in the levels of the hormones triggers the feedback mechanism. Whenever there is a change in the normal state, the messages are sent to 'increase' secretions if there is a fall below normal or to 'decrease' secretions if there is a rise above norma

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