The C-value paradox is that
a. generally eukaryotes have larger genomes than prokaryotes.
b. there is not a strong correlation between genome size and morphological complexity.
c. organisms with larger genomes have a correspondingly higher number of genes.
d. within taxonomic groups, there is little variation in genome size.
e. larger organisms don't necessarily have larger genomes.
Ans: b
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Serological methods
A. are useful in identifying bacteria. B. rely on the specificity of an antibody-antigen interaction. C. may be simple and rapid. D. All of the choices are correct.
Which region of a structural gene contains the information that specifies an amino acid sequence?
A. promoter region B. transcribed region C. terminator D. regulatory sequence E. enhancer region
Which statement is true?
a. Retroviruses hijack existing reverse-transcription processes in cell to reproduce. b. Retroviruses activate vestigial genes in host cells to facilitate viral reproduction. c. Retrovirus genomes are encoded in RNA and must be converted to DNA in the cell. d. Retroviruses only become symptomatic within the offspring of infected host organisms.
The polymerase chain reaction was developed by:
a. Francis Crick. b. Walter Gilbert. c. E.M. Southern. d. Kary Mullis. e. Leland Hartwell