Microbiology - Micro Organisms - Discussion

Discussion :: Micro Organisms - Section 1 (Q.No.9)


Which of the following is not true for prokaryotic organism?

[A]. Nucleus is not bounded by nuclear membrane
[B]. Chromosomes does not contain histones
[C]. 80S ribosomes are distributed in cytoplasm
[D]. Cell wall contains peptidoglycan as one of the major component

Answer: Option C


No answer description available for this question.

Darakhshan said: (Aug 1, 2012)  
In eukaryotes, the complete 80S monosome comprises a 40S small subunit (SSU) that includes the 18S rRNA, and a 60S large subunit (LSU) that includes the 28S and 5S rRNAs.

Ribosomes in Prokaryotes are 70S, where each one comprises 30S (small) and 50S (large) subunits. 50S further comprises 5S subunit of RNA along with subunits of 23S RNA.

Geetika said: (Jan 21, 2013)  
S stands for sedimentation coefficient defined as how fast a cell organelle sediment in ultra centrifuge. As sedimentation coefficient are not additive so that 50s plus 30s is not equal to 80s but it is 70s[prokaryotic].

Firi Tekalign said: (Mar 11, 2016)  
Please see it again. Because in Q8, if "70s ribosome present in. " is true how we can give for " 80s ribosome. " in prokaryote is become false?

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