Assertion : Mitochondria and chloroplasts are semiautonomous organelles.
Reason : They are formed by division of pre-existing organelles as well as contain DNA but lack protein synthesizing machinery

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark a
B. lf both Assertion & Reason are true but the reason is no t the correct explanation of the assertion, then mark b
C. If Assertion is true statement but Reason is false, then mark c
D. If both Assertion and Reason are false statements, then mark d.

Answer

C

Explanation

Mitochondria and chloroplasts both are double membrane organelles. They are semi autonomous as both their strucutre and functions are partially controlled by nucleus of the cell and partially themselves. Both possess their own DNA and arises from pre-exsting cells. Synthesis of many amino acids occurs in mitochondira. The first formed amino acids are glutamic acid and aspartic acid. Also plastid manufactures some of its own proteins, enzymes and other chemicals because of the presence of 70s ribosomes which can help translate the coded information contained in mRNAs transcribed over chloroplast DNA.