Exam 2 ASU BIO 340 General Genetics Questions and Answers 100% Pass

Exam 2 ASU BIO 340 General Genetics
Questions and Answers 100% Pass


components of a nucleotide -

CORRECT ANSWER: phosphate group, 5 carbon sugar, nitrogenous

base




QUESTION: types of nitrogenous bases -

CORRECT ANSWER: purines and pyrimidines




QUESTION: 1' (deoxyribose carbon atom numbering system) -

CORRECT ANSWER: the carbon attached to the nitrogenous base




QUESTION: 2' (deoxyribose carbon atom numbering system) -

CORRECT ANSWER: the deoxy carbon - only hydrogens attached

,QUESTION: 3' (deoxyribose carbon atom numbering system) -

CORRECT ANSWER: carries the hydroxyl group




QUESTION: 4' (deoxyribose carbon atom numbering system) -

CORRECT ANSWER: binds to the O which binds to the 1' to make

the ring




QUESTION: 5' (deoxyribose carbon atom numbering system) -

CORRECT ANSWER: carries the phosphate group




QUESTION: DNA strand polarity -

CORRECT ANSWER: Each strand of DNA has distinct 5' and 3' ends

creating polarity within the backbone.

, 5' will have an -OH or phosphate group bonded to C-5' of the sugar,

while the 3' end has a free -OH on C-3 of the sugar.




QUESTION: Rules to apply -

CORRECT ANSWER: pyrimidine vs purine

A=T, C=G

3 hyrdogen bonds (C-G), 2 hydrogen bonds (A-T)

5' carbon vs 3' carbon

strands are anti-parallel




QUESTION: Chargaff's Rule -

CORRECT ANSWER: ratios are 1:1

A=T and C=G

must be double stranded




QUESTION: semiconservative replication -