_______ is the use of a gene sequence to synthesize a functional protein
A. Loss-of-function mutation
B. Gene expression
C. The human genome project
D. Proteonomics
E. None of these
B
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A mycelium is a mass of what structures?
a. thallus b. hyphae c. peptidoglycans d. pellicles
Which of the following steps, in order, were used to determine what receptor in the hypothalamus
binds NPY?
a. clone gene; sequence gene; Northern blotting experiment b. sequence gene; Northern blotting experiment; clone gene c. Northern blotting experiment; clone gene; sequence gene d. clone gene; Northern blotting experiment; sequence gene e. sequence gene; clone sequenced gene; Northern blotting experiment using cloned gene
Match the following items with the correct phrases.
_______1. In the nitrogen cycle, bacteria called ____________________ convert atmospheric nitrogen gas into ammonia in the soil. _______2. ____________________ live in the root nodules of legumes such as alfalfa and clover. _______3. ____________________ are capable of converting the nitrogen within a dead plant or animal into ammonia in the soil. _______4. In the nitrogen cycle, soil organisms called ____________________ convert ammonia into nitrites, and nitrites into nitrates. _______5. In the nitrogen cycle, soil organisms called ____________________ convert the nitrogen in nitrates to nitrogen gas in the atmosphere. a. cyanobacteria b. denitrifying bacteria c. nitrifying bacteria d. nitrogen-fixing bacteria e. saprophytes
How does PTEN affect the balance between proapoptotic and antiapoptotic signals?
a) PTEN cuts a phosphate group off of PKB, which throws the balance in an antiapoptotic direction. b) PTEN removes the phosphate group from the 3-position of PIP3, converting it to PI(4,5)P2, which cannot activate PKB (AKT) and thus throws the balance in an antiapoptotic direction. c) PTEN removes the phosphate group from the 3-position of PIP3, converting it to PI(4,5)P2, which cannot activate PKB (AKT) and thus throws the balance in a proapoptotic direction. d) PTEN cuts a phosphate group off of PKB, which throws the balance in a proapoptotic direction.