Which portion of DNA serves as the starting point for a gene?
a. promoter
b. nucleotide cap
c. codon
d. transcript
e. polymerase
ANSWER: a
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For taxonomic classification systems to be internationally shared, a scientific name must be created using the which of the following systems?
a. phylogeny b. systematic c. taxonomy d. binomial nomenclature
What is a common feature of most mollusk bodies?
a. dorsal mantle b. book lungs c. tube feet d. closed circulatory system
Hoverflies like to drop in at outdoor picnics to sample the sweets, but the reaction of humans is to flee the scene
because of the flies' uncanny resemblance to bees. Thus, the survival of hoverflies is enhanced by ____.
a. mimicry b. display behavior c. warning coloration d. chemical defenses e. camouflage
Each of the following is a type of cell–cell junctions except
A) adhesive. B) tight. C) gap. D) plasmodesmata. E) All are cell–cell junctions.