Introns and an exons are removed from Gene 1 and inserted into Gene 2. What could happen to the protein product of Gene 2 as a result of this insertion?
A. Nothing; Gene 2 retains all of its exons so the protein will be translated correctly and will be functional.
B. Only the first segment of Gene 2 will be translated into a protein, therefore the protein will be nonfunctional.
C. The protein product could be nonfunctional or provide a survival and reproductive advantage.
D. Gene 2 gains an additional exon, therefore the protein will provide an additional survival and reproductive advantage.
C. The protein product could be nonfunctional or provide a survival and reproductive advantage.
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Protein kinases ____
a. add phosphate groups to proteins b. bind cGMP c. stimulate adenylyl cyclase d. polymerize amino acids e. hydrolyze proteins
The abnormal protrusion of a heart valve that results in the inability of the valve to close completely is known as a/an _____________
Fill in the blank(s) with the appropriate word(s).
In the axoneme, sidearms
A) are 10 protofilament incomplete microtubules attached to 13 protofilament microtubules. B) generate force to slide microtubules past one another. C) project toward the central pair from each outer doublet. D) link adjacent doublet microtubules to limit sliding. E) are complete 13 protofilament microtubules.
A notochord is a:
A) tube for circulating water through gills. B) dorsal nerve cord. C) ventral nerve cord. D) tough yet flexible support structure. E) specialized tail adapted for swimming.