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NEET 2008
Exam
NEET
Year
2008
Subject
Botany
Chapter
Biological Classification

NEET 2008 · Botany · Biological Classification

Thermococcus, Methanococcus and Methanobacterium exemplify

Thermococcus, Methanococcus and Methanobacterium exemplify

Options

  1. ABacteria that contain a cytoskeleton and ribosomes
  2. BArchaebacteria that contain protein homologous to eukaryotic core histones
  3. CArchaebacteria that lack any histones resembling those found in eukaryoties but whose DNA is negatively supercoiled
  4. DBacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria

Correct answer

C. Archaebacteria that lack any histones resembling those found in eukaryoties but whose DNA is negatively supercoiled

Step-by-step solution

Archaebacteria have -ve supercoiled DNA but histones are chemically different in composition from eukaryotes.
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