________ pathways are those that function both catabolically and anabolically.
Fill in the blank(s) with the appropriate word(s).
Amphibolic
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Points of adhesion between adjacent cells characterized by cadherins interacting with intermediate filaments are referred to as ____
Fill in the blank with the appropriate word.
In a messenger RNA the 3' UTR refers to the region of the mRNA that is
a. before the start codon. b. before the site for initiation of transcription. c. after the stop codon. d. the coding region. e. after the site for termination of transcription.
Water molecules are attracted to one another because the ____
a. slightly positive charge of the hydrogen atom from one molecule of water attracts the slightly negative charge of the oxygen atom from another molecule b. slightly negative charge of the hydrogen atom from one molecule of water attracts the slightly negative charge of the oxygen atom from another molecule c. slightly positive charge of the hydrogen atom attracts the oxygen within the same molecule of water, which leads to an increase in its polarity
d. water molecules participate in non-polar covalent bonds, which increase the attraction of the molecules to each other e. water molecules bind to each other through their mutual attraction to ionic compounds
Which of the following will eventually produce a
mature male gametophyte? a. megaspore b. microsporangium c. microspore d. microgamete e. megagametophyte