A process that causes a three dimensional protein to change shape, resulting in the lose of biological function.
A) Polarity
B) Compound
C) Denaturation
D) Monosaccharides
E) Hydrogen bonds
F) Element
G) Triglycerides
H) Amino acids
I) Tertiary structure
J) Active site
C) Denaturation
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All skeletal muscle fibers are _____
A) smooth and under involuntary control B) smooth and operate independently of other skeletal muscle fibers C) striated and under voluntary control D) smooth and under voluntary control E) striated and electrically coupled to neighboring fibers
Luminescence
A. is catalyzed by luciferase. B. may be controlled by quorum sensing. C. may be produced by bacteria. D. All of the choices are correct.
A population of cells that are genetically identical and may be carrying a desired plasmid is called a(n)
a. genus. b. clone. c. vector. d. exon.
Which of the following is evidence that the transition to multicellularity did not require the origin of large numbers of novel genes?
a. The multicellular groups, animals and fungi, are unikonts. Some studies based on whether the genes for DHFR and TS are separate or fused indicate the unikonts were the first group of eukaryotes to diverge. b. The cadherin proteins of animals, which are involved in animal cell adherence to each other, contain only one novel domain not found in the cadherin proteins of unicellular choanoflagellates. c. Multicellularity evolved once and may have involved two stages: First, colonies arose as dividing cells remained attached by their shared cell walls; then differentiated cells arose as some cells became specialized for reproduction. d. Genomic studies indicate that multicellular Volvox has few novel genes compared with unicellular Chlamydomonas, and the cadherin proteins of animals, which are involved in animal cell adherence to each other, contain only one novel domain not found in the cadherin proteins of unicellular choanoflagellates. e. Genomic studies indicate that multicellular Volvox has few novel genes compared with unicellular Chlamydomonas.