#Question id: 11635
#Unit 8. Inheritance Biology
Given below, is the result of a complementation test for eight independent mutants (1 to 8).
#Question id: 662
#Unit 1. Molecules and their Interaction Relevant to Biology
________ received a Nobel Prize in 1964 for determining the structure of vitamin B12. He/she also solved the structure of penicillin in 1947 and developed many techniques used in the study of large proteins.
#Question id: 4272
#Unit 3. Fundamental Processes
There are two classes of release factors for translation termination. Choose correct statements
A. Class I release factors recognize the stop codons and trigger hydrolysis of the peptide chain from the tRNA in the P-site.
B. Prokaryotes have two class I release factors called RF1 and RF2. RF1 recognizes the stop codon UGA, UAA and RF2 recognizes the stop codon UAG and UAA.
C. In eukaryotic cells, there is a single class I release factor called eRF1 that recognizes all three stop codons.
D. Class II release factors stimulate the dissociation of the ribosome after release of the polypeptide chain.
#Question id: 5754
#Unit 8. Inheritance Biology
A cell is exposed to EMS (a mutagen that causes guanine to mispair with thymine) and allowed to undergo a few rounds of DNA replication. The mutational event caused by this mutagen will be
#Question id: 3818
#Unit 3. Fundamental Processes
DNA replication is studied in a newly discovered bacterium. It takes 30 min for the bacterium to complete a round of replication at 37oC. A Meselson-Stahl-type experiment was performed. The bacteria were grown for several generations in 14N-medium and then switched to 15N-medium. The DNA molecules were then analyzed.
If the mechanism of DNA replication in this bacterium were semi-conservative, what results would be found when the double-stranded DNA was analyzed in a CsCl density gradient after three generations in 15N-medium?