What are the general structural features of a prokaryotic plasmid?
A) circular double-stranded DNA in the nucleus
B) linear double-stranded DNA integrated into the chromosome
C) proteins on the bacterial chromosome
D) made of protein and existing in the cytosol
E) circular double-stranded DNA in the cytosol
Answer: E
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A population of viruses with similar characteristics is called a _____
A) strain B) species C) type D) genome E) sense
A young scientist has discovered a new species of grub worm in the Amazon. He would like to explore the possibility that in this grub worm the codon CUC is the start codon and codes for methionine, not leucine as it does in other worms. To date, he has been unable to get his research funded, most likely because
A) worms have been extensively studied and their genomes are simple. B) worms do not contain homologous genes to humans. C) codons are generally the same in all worms. D) the genetic code is universal to all species. E) worms are difficult to maintain in the laboratory.
Which process results in quick bursts of change or speciation followed by long periods of stasis?
A. phyletic gradualism B. dynamic stasis C. punctuated equilibrium D. rocket evolution
Bacteria that contain complex internal membrane systems are more likely to divide by budding than by binary fission
Indicate whether the statement is true or false.