Chloroplasts differ from mitochondria in that the former have

A. DNA.
B. two lipid bilayers.
C. 70S ribosomes.
D. thylakoids.
E. cristae.


Answer: D

Biology & Microbiology

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The relevance of the pseudocoelom to phylogeny has been questioned. Rotifera and Nematoda both have a pseudocoelom. The molecular evidence suggests which of the following conclusions?

A. Molecular evidence confirms that rotifers and nematodes are closely related and that both participate in the same monophyletic clade. B. Rotifers are more closely related to Lophotrochozoa than to nematodes. C. Rotifers are more closely related to echinoderms than to nematodes. D. Rotifers are more closely related to chordates than to nematodes. E. Rotifers are more closely related to nematodes than to mollusks.

Biology & Microbiology

The most abundant organic molecules in the world are nucleic acids

Indicate whether the statement is true or false.

Biology & Microbiology

Homozygous dominant is indicated by

What will be an ideal response?

Biology & Microbiology

The virulence of Vibrio cholerae is due to its

A. enterotoxin. B. invasive enzymes. C. neurotoxin. D. capsule. E. All of the above.

Biology & Microbiology