10. How many methionines would be incorporated into a protein if the following e
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10. How many methionines would be incorporated into a protein if the following eukaryotic mRNA were translated? 5'- UAGAUGCACCAGAUGCUAGGAGGAUUAUCCAUGUCAUGUUGA-3 a) 1 b) 2 c) 3 d) 4 11. How many GTPs are required for the complete translation of a protein 100 amino acids long? a) 300 b) 100 e) None of the above c) 99 d) 199 12. Which factor is responsible for keeping the 50S subunit away from the 30S subunit? a) EF-T b) EF-Tu e) IF-2 c) IF-3 d) EF-G For the following questions determine if the term/process is for prokaryotic or eukaryotic cells: a) eukaryotic b) prokaryotic c) not specific for one or the other 13. 40S and 60S 14. 5S rRNA 15. tRNAi metExplanation / Answer
10.
11)
12)
13) 40S and 60S subunits are eukaryotic sedimentation coefficients of ribosoms.
14) 5sr RNA is present in both prokaryotic and eukaryotic cells . It is absent in fungi and mitochondrial ribosomes. Hence it is not specific for both a or b.
16) tRNAimet is for initiating eukaryotic protein syntheis by methionine . In prokaryotes N formyl methionine is used in initiation of translation . tRNA f-met is ued in prokaryotes.
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