Radioactive iodine is sometimes used to treat thyroid cancer. This is an example of the use of (isotopes/elements/ isomers) in medical treatment
What will be an ideal response?
isotopes
Bloom's Taxonomy: Knowledge
Section: Atoms
Learning Outcome: 2.4
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The nitrogenous base that is in RNA but not in DNA is
A) thymine. B) thiamine. C) uracil. D) urea.
Transcription of the XIST gene results in ________
a. an active X chromosome b. carpel formation in Arabidopsis thaliana c. stamen formation in Arabidopsis thaliana d. a Barr body
Which of the following represents one of the four major biological macromolecule classes?
a. proteases b. hydrophilic G-proteins c. amorphous solids d. nucleic acids
A single oak tree can support hundreds of beetles, caterpillars and other primary consumers. This would be best represented by
A. an inverted pyramid of biomass. B. a pyramid of energy. C. a pyramid of biomass. D. an inverted pyramid of numbers. E. a pyramid of numbers.