which of the following set of organelles contain DNA..???
a. mitochondria,Peroxysome
b. plasma membrane, ribosome
c. mitochondria,chloroplast
d. chloroplast,Dictyosome
Answers
The correct answer is Mitochondria and Chloroplast.
Thus, Option (C) is the right or the correct choice.
REASON :
These two organelles of cell have the ability to duplicate themselves. So, to undergo this process of self duplication, they have the following :
i) DNA which is circular in structure.
ii) Ribosomes of 70 S type.
iii) RNAs like mRNA, rRNA, and tRNA.
Mitochondria and chloroplast contain DNA
Explanation:
Mitochondial DNA-
Mitochondrial DNA- This is obtained from mother as it is a circular DNA that takes part in the process of replication, transcription and translation.
More over study of mitochondrial DNA is used in diagnosis of certain prosthetic cancers.
It has a relationship with ageing as it produces ROS. Mutation in ROS results in imbalance in ROS production.
It is used in evolutionary and systematic biology study.
Chloroplast DNA-
This is circular DNA that are also called as plastom.
Protein synthesis takes place in chloroplast with the help of RNA polymerase.