USABO OPEN EXAM COMBINED SETS

USABO Exam Prep Questions And Revised Correct Answers | Updated What enzyme does HIV use to convert RNA to DNA? - ANSWER : Reverse Transcriptase The promoter region of a prokaryotic gene is located ______ to the gene and is the binding site for ______. - ANSWER : 5'...RNA polymerase Wh...

USABO Open Exam Questions And Revised Correct Answers Updated The production of the genetically engineered "golden rice" could be important to the people of developing nations, especially in South-East Asia, because: A. people are more likely to consume yellow grains than white B. golde...

USABO Open Exam Questions And Revised Correct Answers Updated In certain areas of Sub-Saharan Africa high levels of anemia are exhibited as a consequence of iron deficiency. What other symptom would you expect might be found in these peoples? A. goiter B. decrease in immune function C....

USABO Open Exam Questions And Revised Correct Answers Updated Which statement is true about enzymes? Enzymes A. Are made up of a base containing nitrogen, phosphate, and ribose. B. Have activity that is independent of temperature and pH. C. Lose some or all of their normal activity when th...

USABO Open Exam Questions And Revised Correct Answers Updated Why is myelin important in the nervous system? A. It allows signals to travel faster along axons because depolarization occurs only at myelinated locations. B. It allows signals to travel faster along axons because depolarizatio...

USABO Open Exam Questions And Revised Correct Answers Updated Both amino acids and nucleotides form complex chains. Select all the answers below that are accurate. A. The chains formed by both have polar phosphate groups. B. Both contain peptide bonds. C. Both contain nitrogen. D. The cha...