o February, 2017 AT CC ds co subunit(s). A8. Ribosomes have c. three d, four e.

Question

o February, 2017 AT CC ds co subunit(s). A8. Ribosomes have c. three d, four e. five a. one b. two A9. The dark, X-shaped structure structure shown at the center of the big halo of DNA in the picture above is called the a. telomere b. G band c. nucleosome core d. centromere e. scaffold A10. The general transcription factor TFIID is very important for RNA polli transcription in eukaryotes, because TFID contains a. sigma factor b. the CTD (carboxy terminal domain) c. TBP (TATA binding protein) d. mediator proteins e. enhancer proteins A11. Which of the following involve(s) RNA-RNA base pairing? a. formation of tRNA "cloverleaf" structure b. codon to anticodon interactions c. termination in prokaryotes d. capping in eukaryotes e. all except d A12. Which of the following is/are removed from the eukaryotic pre-mRNA before the final molecules goes to the cytosol for translation? a. Poly A tail b. 7-methyl guanosine cap c. introns d. exons e. 3'UTR haet

Explanation / Answer

A8. The answer is b. two subunits. Those are reffered as small and large subunits. The Mg2+ ions plays crucial role for their assemply and disassembly.

A9. The answer is d. centromere. The region of chromosome where two chromatids hold to gether is called centromere.

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