Mitochondrial genomes have genes encoding (mostly complex I–IV) proteins, rRNAs, and tRNAs

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#Id: 3963

#Unit 2. Cellular Organization

The capsid is assembled around the genome for single-stranded RNA viruses in TMV.

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#Id: 2157

#Unit 9. Diversity of Life Forms

Phylogenetic relationships among species in a radiation are difficult to determine for two related reasons.                                                                 

a. During the short time between two successive speciation events, few new mutations are fixed.                                                                               

b. Incomplete lineage sorting may occur during rapid diversification.

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#Id: 607

#Unit 2. Cellular Organization

The E. coli trp operon contains the 5 genes Trp-EDCBA for the anabolic enzymes to make the tryptophan.

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#Id: 3649

#Unit 3. Fundamental Processes

Valine cannot coordinate the Zn2+ in this way and hence does not undergo adenylation by ThrRS. A separate editing site deal with misacylated Ser–tRNAThr.

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#Id: 898

#Unit 13. Methods in Biology

Terminal transferase (TdT) Adds homopolymer tails to the 3’end of DNA.