Question
Download Solution PDFApart from nucleus of the cell, which two cell organelles have their own DNA and Ribosomes?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 'Plastids and Mitochondria'.
Key Points
- Apart from the nucleus of the cell, the two cell organelles, Plastids and Mitochondria have their own DNA and Ribosomes
- They are able to synthesize some of their own protein and replicate independently of the nucleus.
- They are also known as autonomous organelles of cells.
- They are evolved from bacteria that were engulfed by nucleated ancestral cells, thus having their own genomes and their own biosynthetic machinery for making RNA and organelle proteins.
Additional Information
- In most eukaryotic species, mitochondria are double membrane-bound organelles and are referred to as the "powerhouse of the cell". They are located inside the cytoplasm and effectively serve as the cell's digestive system.
- The plastid is an organelle that is membrane-bound and is found in the cells of plants, algae, and certain other eukaryotic species,
- Most cells include an organelle called the Golgi apparatus, sometimes known as Golgi bodies. It performs a crucial function in the secretory process by encapsulating proteins into vesicles before secretion.
- Animal cells commonly contain lysosomes, which are membrane-bound organelles. These are globular vesicles that contain hydrolytic enzymes that can break down a wide range of biomolecules.
Last updated on Jun 30, 2025
-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.
-> The RRB Group D Exam Date will be soon announce on the official website. Candidates can check it through here about the exam schedule, admit card, shift timings, exam patten and many more.
-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025.
-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.
-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a National Apprenticeship Certificate (NAC) granted by the NCVT.
-> This is an excellent opportunity for 10th-pass candidates with ITI qualifications as they are eligible for these posts.
-> The selection of the candidates is based on the CBT, Physical Test, and Document Verification.
-> Prepare for the exam with RRB Group D Previous Year Papers.