In which process are existing protein regions or domains mixed in novel combinations to produce new proteins?
a. alternative splicing
b. degeneracy
c. exon shuffling
d. the wobble hypothesis
e. aminoacylation
ANSWER: c
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Comparison of gene expression in different human tissues using the nuclear run-on transcription assay illustrates that
A) differences in protein production are mainly due to post-transcriptional mechanisms. B) few differences in protein production are detected between tissues. C) differences in protein production are mainly due to differential gene transcription. D) differences in protein production are not due to differential gene transcription. E) few differences in RNA production are detected between different tissues; thus differential protein production is mainly due to post-transcriptional mechanisms.
The instructions for producing and maintaining life are contained in what molecule?
What will be an ideal response?
In alternation of generations in all plants, the multicellular haploid (1n) organism is referred to as the:
A) sporophyte. B) gamete. C) gametophyte. D) zygote.
What would be the best approach for an artificial selection regime for a microbiome?
A. Sequence genomes of all microbial strains, analyze genes, transfer best candidates to host and assess phenotype. B. Use antibiotics to destroy microbiome, compare axenic phenotype vs. normal host, then transfer microbiome back to axenic hosts. C. Assess host phenotype, collect microbiome of the best, and transfer to more host individuals for reselection. D. Determine which strain is most common in healthiest hosts, then transfer this strain to axenic hosts for phenotype assessment.