Which components are required in plasmids? (check all that apply)
_____ A selectable marker, usually antibiotic resistance
_____ A bacterial artificial chromosome
_____ One or more unique restriction sites where foreign DNA can be added
_____ An origin of replication to allow it to replicate in E. coli independently of the host chromosome
__X__ A selectable marker, usually antibiotic resistance
_____ A bacterial artificial chromosome
__X__ One or more unique restriction sites where foreign DNA can be added
__X__ An origin of replication to allow it to replicate in E. coli independently of the host chromosome
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Blood goes to the __________ after it leaves the
glomerular capillaries. a. renal vein b. renal artery c. peritubular capillaries d. vena cava e. heart
Vinblastine, a drug that inhibits microtubule polymerization, is used to treat some forms of cancer. Cancer cells given vinblastine would be unable to _____
A) form cleavage furrows during cell division B) migrate by amoeboid movement C) separate chromosomes during cell division D) maintain the shape of the nucleus
Fraternal twins
A. have exact copies of each other's DNA. B. are usually of opposite sex. C. are only as alike as any other siblings. D. will usually occur at the first pregnancy.
In your research, you have discovered that Protein X is often ubiquitinated in people with a certain disease. What would you predict about levels of Protein X in these patients?
A. Levels of Protein X will be the same, just carrying a ubiquitin tag. B. Levels of Protein X will be decreased due to negative feedback on transcription. C. Levels of Protein X will be increased due to protection from degradation. D. Levels of Protein X will be increased due to transcriptional activation. E. Levels of Protein X will be low due to degradation in the proteasome.