A drug designed to inhibit the response of cells to testosterone would most likely result in _____
A) lower cytoplasmic levels of cAMP
B) a decrease in transcriptional activity of certain genes
C) an increase in cytosolic calcium concentration
D) a decrease in G protein activity
B
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Which of the following best describes Sanger sequencing?
A. By using dideoxynucleotides that don't have a triphosphate group, there is no energy to add it to the growing nucleotide strand and hence it stops replication. B. By using dideoxynucleotides, it stops the addition of another nucleotide after it. This can then be run on a regular gel to determine the sequence. C. By using dideoxynucleotides, it stops the addition of another nucleotide. These are known as chain terminators and have been labeled with a specific probe to allow for detection and hence the sequence. D. By using dideoxynucleotides, you can tell where they have been incorporated by using microarray analysis. E. By using dideoxynucleotides, you can tell where they have been incorporated by the difference in weight.
The pathway that a secretory protein takes from inside to outside is: rough endoplasmic reticulum, ________, Golgi complex, ________, outside the cell.
Fill in the blank(s) with the appropriate word(s).
The antibiotic erythromycin works by inhibiting the movement of ________ along the _________. Fill in the blank(s) with the appropriate word(s)
According to the sliding-filament model of muscle contraction, a sarcomere contracts when its ________
A) thick filaments slide across the ends of the sarcomere B) thin filaments slide across the ends of the sarcomere C) thin and thick filaments slide further away from each other D) thin and thick filaments slide past each other to get closer together