USABO /
Practice
/ /
Exam Questions With Correct Answers
/ // // // //
What //enzyme //does //HIV //use //to //convert //RNA //to //DNA? //- //verified //answer(s)-
✔✔Reverse //Transcriptase
The /
/promoter /
/region /
/of //
a/
/prokaryotic /
/gene /
/is //located //______ //to //the //gene //and //is //the //binding //site //for //______. //- //verified //answer(s)-
✔✔5'...RNA //polymerase
Which //of //the //following //is //TRUE //of //prokaryotes? //
I. //Simultaneous //transcription //and //translation //
II. //Presence //of //intron //sequences //
III. //Circular //DNA //- //verified //answer(s)-✔✔I //and //III //only
Integral /
/transmembrane /
/proteins /
/are /
/proteins /
/imbedded /
/in /
,/the /
/cell //membrane. //Which //of //the //following //amino //acids //would //you //MOST //expect //to //find //in
//the //transmembrane //region //of //such //proteins? //- //verified //answer(s)-✔✔Tryptophan
When /
/the /
/base /
/composition /
/of /
/DNA /
/from /
/bacterium /
/Mycobacterium /
/tuberculosis /
/was /
/determined, /
/18% /
/of /
/the /
/bases /
/were /
/found /
/to //be //adenine. //What //is //the //G //+ //C //content //in //M. //tuberculosis? //- //verified //answer(s)-
✔✔64%
The /
/frequency /
/of /
/individuals /
/affected /
/with /
/an /
/autosomally /
/recessive /
/inherited /
/disorder //is //1 //in //4. //Assuming //that //the //population //affected //by //this //disease //is //in //Hardy-
,Weinberg /
/equilibrium, /
/what //is //the //proportion //of //carrier //individuals //in //this //population? //- //verified //answer(s)-
✔✔50%
The /
/velocity /
/of /
/action /
/potential /
/conduction /
/across //
a/
/nerve /
/axon /
/is /
/increased /
/by /
/the /
/presence /
/of /
/the /
/myelin /
/sheath. /
/In //the //peripheral //nervous //system, //what //cell //myelinates //the //axon? //- //verified //answer(s)-
✔✔schwann //cell
The /
/cell /
/bodies /
/of /
/afferent /
/(sensory) //nerves //involved //in //somatic //reflexes //are //located //in //the //- //verified //answer(s)-
✔✔Dorsal //root //ganglion
, Rods /
/and /
/cones //are //associated //with //_____ //and //_____ //vision, //respectively. //- //verified //answer(s)-
✔✔Light/dark...color
Populations /
/that /
/are /
/likely /
/to /
/be /
/living /
/at //a //density //near //the //limit //of //their //resources, //are //characterized //as //- //verified //answer(s)-
✔✔K-selected
In //many //types //of //cancer, //the //function //of //the //p53 //gene //is //lost. //Wild-
type //p53 //is //MOST //likely //to //be //a //- //verified //answer(s)-✔✔tumor //suppressor
What /
/glycolytic /
/product //is //shuttled //to //the //mitochondria //in //aerobic //respiration? //- //verified //answer(s)-
✔✔Pyruvate
During /
/human /
/development, /
/which //process //leads //to //the //formation //of //three //germ //layers? //- //verified //answer(s)-
✔✔gastrulation
Telomerase /
/is /
/responsible /
/for /
Practice
/ /
Exam Questions With Correct Answers
/ // // // //
What //enzyme //does //HIV //use //to //convert //RNA //to //DNA? //- //verified //answer(s)-
✔✔Reverse //Transcriptase
The /
/promoter /
/region /
/of //
a/
/prokaryotic /
/gene /
/is //located //______ //to //the //gene //and //is //the //binding //site //for //______. //- //verified //answer(s)-
✔✔5'...RNA //polymerase
Which //of //the //following //is //TRUE //of //prokaryotes? //
I. //Simultaneous //transcription //and //translation //
II. //Presence //of //intron //sequences //
III. //Circular //DNA //- //verified //answer(s)-✔✔I //and //III //only
Integral /
/transmembrane /
/proteins /
/are /
/proteins /
/imbedded /
/in /
,/the /
/cell //membrane. //Which //of //the //following //amino //acids //would //you //MOST //expect //to //find //in
//the //transmembrane //region //of //such //proteins? //- //verified //answer(s)-✔✔Tryptophan
When /
/the /
/base /
/composition /
/of /
/DNA /
/from /
/bacterium /
/Mycobacterium /
/tuberculosis /
/was /
/determined, /
/18% /
/of /
/the /
/bases /
/were /
/found /
/to //be //adenine. //What //is //the //G //+ //C //content //in //M. //tuberculosis? //- //verified //answer(s)-
✔✔64%
The /
/frequency /
/of /
/individuals /
/affected /
/with /
/an /
/autosomally /
/recessive /
/inherited /
/disorder //is //1 //in //4. //Assuming //that //the //population //affected //by //this //disease //is //in //Hardy-
,Weinberg /
/equilibrium, /
/what //is //the //proportion //of //carrier //individuals //in //this //population? //- //verified //answer(s)-
✔✔50%
The /
/velocity /
/of /
/action /
/potential /
/conduction /
/across //
a/
/nerve /
/axon /
/is /
/increased /
/by /
/the /
/presence /
/of /
/the /
/myelin /
/sheath. /
/In //the //peripheral //nervous //system, //what //cell //myelinates //the //axon? //- //verified //answer(s)-
✔✔schwann //cell
The /
/cell /
/bodies /
/of /
/afferent /
/(sensory) //nerves //involved //in //somatic //reflexes //are //located //in //the //- //verified //answer(s)-
✔✔Dorsal //root //ganglion
, Rods /
/and /
/cones //are //associated //with //_____ //and //_____ //vision, //respectively. //- //verified //answer(s)-
✔✔Light/dark...color
Populations /
/that /
/are /
/likely /
/to /
/be /
/living /
/at //a //density //near //the //limit //of //their //resources, //are //characterized //as //- //verified //answer(s)-
✔✔K-selected
In //many //types //of //cancer, //the //function //of //the //p53 //gene //is //lost. //Wild-
type //p53 //is //MOST //likely //to //be //a //- //verified //answer(s)-✔✔tumor //suppressor
What /
/glycolytic /
/product //is //shuttled //to //the //mitochondria //in //aerobic //respiration? //- //verified //answer(s)-
✔✔Pyruvate
During /
/human /
/development, /
/which //process //leads //to //the //formation //of //three //germ //layers? //- //verified //answer(s)-
✔✔gastrulation
Telomerase /
/is /
/responsible /
/for /
