BB 451 Exam 3 questions well answered to pass graded A+

BB 451 Exam 3 questions well answered
to pass graded A+



What is a nucleobase covalently linked to the C1' of a 5-carbon sugar (pentose)? -
correct answer ✔✔nucleoside


What is the name of the bond where the C1' of a pentose links to a nucleobase? -
correct answer ✔✔glycosidic bond


Where is the glycosidic bond in purines? - correct answer ✔✔N9-C1'


Where is the glycosidic bond in pyrimidines? - correct answer ✔✔N1-C1'


What are the phosphate esters of nucleosides? - correct answer ✔✔nucleotides


What does NMP stand for? - correct answer ✔✔ribonucleoside monophosphate


What does dNMP stand for? - correct answer ✔✔deoxyribonucleoside
monophosphate


What are NMPs and dNMPs covalently joined by to make RNA and DNA,
respectively? - correct answer ✔✔phosphodiester bonds

,What are long chains of nucleotides called? - correct answer ✔✔polynucleotides


What are short chains of nucleotides called? - correct answer ✔✔oligonucleotides


What nucleotide is only in DNA and how would you name it? - correct answer
✔✔Thymine (dTMP, dTDP, dTTP, TMP, TDP, TTP)


What is the three letter abbreviation for the base adenine? - correct answer
✔✔ade


What is the three letter abbreviation for the base cytosine? - correct answer
✔✔cyt


What is the three letter abbreviation for the base thymine? - correct answer
✔✔thy


What is the three letter abbreviation for the base guanine? - correct answer
✔✔gua


What is the three letter abbreviation for the base uracil? - correct answer ✔✔ura


What is the three letter abbreviation for the nucleoside adenosine? - correct
answer ✔✔ado

,What is the three letter abbreviation for the nucleoside guanosine? - correct
answer ✔✔guo


What is the three letter abbreviation for the nucleoside cytidine? - correct answer
✔✔cyd


What is the three letter abbreviation for the nucleoside uridine? - correct answer
✔✔urd


What is the three letter abbreviation for the nucleoside deoxythymidine? - correct
answer ✔✔dThd


What constantly happens to RNA? - correct answer ✔✔broken down


Why is RNA constantly being broken down? - correct answer ✔✔2' OH is unstable


What is the common form of DNA? - correct answer ✔✔B-form


How are the strands in B-form DNA oriented? - correct answer ✔✔right handed,
antiparallel


How do the strands in B-form DNA interact? - correct answer ✔✔by hydrogen
bonds between complimentary bases


How many hydrogen bonds are between G and C? - correct answer ✔✔3

, How many hydrogen bonds are between A and T? - correct answer ✔✔2


What does the angle of interaction between base pairs result in in B-form DNA? -
correct answer ✔✔major and minor grooves


What is the helix diameter in B-form DNA? - correct answer ✔✔20 angstroms


What is the helix rise in B-form DNA? - correct answer ✔✔3.4 angstroms


What is the helix pitch in B-form DNA? - correct answer ✔✔34 angstroms


How many base pairs are there per helical turn of B-form DNA? - correct answer
✔✔10


What is the tilt of base pairs from perpendicular to helix axis of B-form DNA? -
correct answer ✔✔1 degree


How is A-form D/RNA different from B-form DNA? - correct answer ✔✔base pairs
more to the side of helix


How is Z-form DNA oriented? - correct answer ✔✔left handed


What does Z-form DNA prefer? - correct answer ✔✔alternating CG base pair
sequences