The two strands of DNA in a DNA double helix
a. are identical to each other.
b. are connected to each other by covalent chemical bonds.
c. both contain nucleotides, but the order of the nucleotides on the two strands is not related.
d. are oriented in the same direction.
e. are antiparallel to each other.
E
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Describe the main structural characteristics of the four basic tissues.
(a) Epithelial tissue: (b) Connective tissue: (a) Muscle tissue: (b) Nervous tissue:
What is the difference between genetic dissection and genome sequencing?
A) Genetic dissection reveals information about one gene at a time and genome sequencing reveals information about all the genes in a genome at once. B) Genetic dissection experiments can be accomplished in any species and genome sequencing is only possible in model organisms. C) Genetic dissection depends on the availability of mutations in model organisms and mutations are of no use in the study of genomes by genome sequencing. D) The genetic dissection approach is affordable and genome sequencing is prohibitively expensive.
How do amino acid sequences influence the properties of a protein?
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The electrical difference across a neuronal membrane is measured in
A. joules. B. milliwatts. C. newtons. D. millivolts. E. milliamperes.