The complete set of 61 sense codons can be read by fewer than 61 distinct tRNA molecules according to ____
a. alternative splicing
b. degeneracy
c. exon shuffling
d. the wobble hypothesis
e. aminoacylation
ANSWER: d
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The ?-jelly roll of the Lpt system functions to
A. help translocate assembled LPS across the outer membrane of the bacterial cell. B. help attach the O-antigen to core oligosaccharide moieties during synthesis of LPS. C. help anchor the newly positioned LPS on the bacterial cell surface. D. help hide lipid A from the hydrophilic periplasm during LPS transport to the membrane.
Klinefelter syndrome (XXY) can be easily diagnosed by _____
a. pedigree analysis b. aneuploidy c. karyotyping d. phenotypic treatment
In a flower, the mature male gametophyte is
a(an)
a. pollen grain. b. germinated pollen grain. c. ovule. d. microspore. e. sperm cell
Name two forms of antagonistic coevolution
What will be an ideal response?