The term used to describe bacteria that are rod-shaped is
A. vibrio.
B. coccobacillus.
C. coccus.
D. bacillus.
Answer: D
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Which of the following is not true with regard to compacting nucleic acids?
A. Some viral coat proteins are RNA-binding proteins that compact the RNA genome of the virus. B. There are enzymes that introduce and maintain coiling of double-stranded DNA molecules. C. There are DNA-binding proteins that maintain structural organization in eukaryotes. D. There are DNA-binding proteins that maintain structural organization in bacteria. E. Single-stranded RNA viruses compact their genomes by packaging complementary RNA.
The animal(s) most often associated with Campylobacter jejuni is/are
A. turtles. B. iguanas. C. chickens. D. ducks. E. All of the choices are correct.
A set of three consecutive bases in mRNA is known as a(n) ____
a. doublet b. codon c. anti-codon d. codex e. tri-codon
Most important vertebrate features like the brain and sense organs are derived from the
A) cerebral cortex B) vertebrate discs C) meninges D) neural crest