Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which of the following statements are correct: (1) mitocondria contain DNA (2) 70S ribosomes occur in prokaryote (3) Ribosomes are made up of phospholipids and oligosaccharide (4) ribosomes are not found in Protista and MoneraA) 1,2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: B
Solution :
Mitochondria is also known as power house of the cell. The inner chamber or matrix of a mitochondria contains DNA, RNA, ribosomes, lipids granules and enzymes of Krebs cycle. DNA can be circular or linear, it is naked or without association with histones. A prokaryotic cell is the one in which the genetic material is not organised into nucleus and all membrane bound organelles are absent so that there is single envelope system of organisation. 70S ribosomes occur in prokaryotic cell.
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