Stanley Miller's experiment that applied electric sparks to a reducing atmosphere of methane, ammonia, water, and hydrogen showed that under these conditions,
a. nucleotides can form.
b. amino acids can form.
c. amino acids can polymerize into polypeptides.
d. nucleotides can polymerize into nucleic acids.
Ans: b. amino acids can form.
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Trends in the evolution of animals includes
a. cephalization. b. the development of types of symmetry. c. variation in coelomic cavities. d. the development of segments. e. all of these.
An individual with hemophilia generally lacks or has very low numbers of platelets
Indicate whether the statement is true or false
Assuming the species to be diploid, the notation Ab would be used to represent _____.
A) a gamete from a dihybrid cross B) an individual from the F1 generation C) a heterozygous parent D) an individual displaying both dominant phenotypes E) this notation would never be encountered
Antimicrobics effective against a wide variety of microbial types are termed
A) Narrow-spectrum drugs B) Semisynthetic drugs C) Broad-spectrum drugs D) Synthetic drugs E) Antibiotics