An intron is a section of ________
A) DNA that is removed during DNA processing
B) the carbohydrate that serves as a signal for RNA transport
C) RNA that is removed during RNA processing
D) protein that is clipped out posttranslationally
E) the transfer RNA (tRNA) that binds to mRNA codon
Answer: C
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Ammonia is likely to be the primary nitrogenous waste in living conditions that include _____
A) lots of fresh water flowing across the gills of a fish B) lots of seawater, such as a bird living in a marine environment C) lots of seawater, such as a marine mammal (for example, a polar bear) D) a terrestrial environment, such as that supporting crickets E) a moist system of burrows, such as those of naked mole rats
The part of the onion that we consume is actually
a. a taproot. b. fibrous roots. c. underground leaves. d. underground stems.
How is methylation of DNA maintained following DNA replication?
What will be an ideal response?
In their basic body plan, mollusks have a visceral mass covered with a soft epithelium and a muscular ____ that is used in locomotion.
Fill in the blank(s) with the appropriate word(s).