The structure of the cartilaginous and bony fishes that detects vibrations in the water is the
a. anal fin.
b. operculum.
c. nostrils.
d. lateral line.
d
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Many antibiotics kill bacteria because they hinder translation by prokaryotic _____
A. ribosomes B. capsules C. cytoskeleton D. cytoplasm E. nucleoids
The human genome is different for every individual
A. true B. false
During attachment of phage to E. coli, the phage
A. actively seek out the bacteria. B. randomly bump into the bacteria. C. attach to proteins or carbohydrates on the bacterial surface. D. attach to the bacterial RNA. E. randomly bump into the bacteria AND attach to proteins or carbohydrates on the bacterial surface.
The gene encoding coat color is X-linked, and male cats have a single copy of the X chromosome. They can therefore express either the O or o allele, resulting in orange or black coat, respectively
Female cats, on the other hand, have two copies of the X chromosome. Thus, they can be heterozygous and express either orange or black. Using this information, list the possible genotypes for these individuals: • orange male • orange female • black male • black female • tortoiseshell