Question
Download Solution PDFWhich cell organelles have its own DNA?
This question was previously asked in
HTET PRT 2019 Official Paper
Answer (Detailed Solution Below)
Option 4 : Both (2) and (3)
Free Tests
View all Free tests >
HTET PGT Official Computer Science Paper - 2019
4.4 K Users
60 Questions
60 Marks
60 Mins
Detailed Solution
Download Solution PDFThe correct answer is ,
Key Points
- Both mitochondria and chloroplasts possess their own genetic material thus, they are called semi-autonomous organelles.
- The mitochondrial DNA and plastid DNA possess genes that produce the proteins necessary for the functioning of mitochondria and chloroplasts respectively.
Important Points
- Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope.
- The number of mitochondria per cell is variable depending on the physiological activity of the cells.
- In terms of shape and size also, a considerable degree of variability is observed.
- Typically it is sausage-shaped or cylindrical having a diameter of 0.2-1.0µm (average 0.5µm) and length 1.0-4.1µm.
- Each mitochondrion is a double membrane-bound structure with the outer membrane and the inner membrane dividing its lumen distinctly into two aqueous compartments, i.e. the outer compartment and the inner compartment.
Last updated on Jun 6, 2025
-> The HTET TGT Applciation Portal will reopen on 1st June 2025 and close on 5th June 2025.
-> HTET Exam Date is out. HTET TGT Exam will be conducted on 26th and 27th July 2025
-> Candidates with a bachelor's degree and B.Ed. or equivalent qualification can apply for this recruitment.
-> The validity duration of certificates pertaining to passing Haryana TET has been extended for a lifetime.
-> Enhance your exam preparation with the HTET Previous Year Papers.