Answers

2014-09-23T08:19:12+05:30
DIFFERENCE BETWEEN 70s RIBOSOMES AND 80S RIBOSOMES:

⇒ 70s ribosomes are found in prokaryotic cells while 80s ribosomes are found in eukaryotic cells

⇒ 70s ribosomes are smaller than 80s ribosomes

⇒the molecular weight of 70s type ribosomes is 3×10^6 daltons while the molecular weight of 80s type ribosomes  is 4-5×10^6 daltons

⇒the ratio of RNA and protein in 70s type ribosomes is 2:1 while the ratio of  RNA and protein in 80stype ribosomes is 1:1
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2014-09-23T09:59:55+05:30
70S type ribosomes are found in prokaryotes.. they are divided into 2 subunits = larger 50S + smaller 20S subunit. 

80S type ribosomes are found in eukaryotes.. and they are divided into = larger 60S + smaller 40S subunits..
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