Match the terms with the best description. _____ base pair substitution _____ promoter _____ polysome _____ exon _____ genetic code _____ intron _____ base pair deletion
a. protein-coding segment
b. causes a shift in the mRNA reading frame
c. may result in the replacement of one amino acid for another
d. removed before translation
e. many ribosomes translating the same mRNA
f. complete set of 64 codons
g. binding site for RNA polymerase
c
g
e
a
f
d
b
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Which proteins recognize and bind molecules from other cells that act as chemical signals?
a. transport proteins b. recognition proteins c. receptor proteins d. cell adhesion proteins e. nuclear proteins
Mendel's discovery of his law of independent assortment would likely not have occurred if he had ________
a. selected any experimental organism other than garden pea plants b. selected any linked genes to study c. studied any traits that were carried on the same chromosome d. known that pea plants could self-fertilize
Cilia are different from flagella in that the cilia are
A. shorter and more numerous. B. longer and more numerous. C. shorter and less numerous. D. larger and less numerous.
Choose the TRUE statement(s) about micturition. (Select all that apply.)
a. In a patient with a spinal injury (no neural connection between brain and bladder or urinary sphincters), urine will flow constantly from the bladder to the outside. b. During the filling phase, smooth muscles in the wall of the bladder are inhibited and relaxed, but smooth muscles of the urinary sphincters are stimulated and contracting. c. During the micturition phase, the detrusor muscle is stimulated to contract by a spinal reflex via parasympathetic neurons. d. The internal urinary sphincter is under voluntary control.