AIPMT 2008 Biology Solved Paper

Question : 28 of 100

Marks: +1, -0

Thermococcus, Methanococcus and Methanobacterium exemplify:

bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
bacteria that contain a cytoskeleton and ribosomes
archaebacteria that contain protein homologous to eukaryotic core histones
archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled.

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