{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}



Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: PERM NUMBER MIDTERM 1 MCDBIOIA WINTER 2009 (D. Low) 30 pts total Please write your NAME on every page. Answer the questions within the boxes or on the lines provided. This examination counts as 30% of your final grade. NAME: 5 E Z l..-1.5 pts. What is the chemical group (3'—P, 5'—P, 3'-OH, 5'—OH) at the sites (denoted by circles) in the replicating DNA indicated by the positions labeled a, b, a(?// and c in thea figure below? HOH .. 3%.} 2. 4 pts. You cross a set of five phage mutants , 31 through s5. You score the ability of each mutation to complement and recombine with each other mutation. (Hintaone mutation is a deletion). ' Com Iementatt'orr Results: Recombination Results: “+”=Complementation occurs “+”=Recombination occurs “— “ =No complementation occurs “-“ = No recombination occurs (b). pts. Draw a genetic map for this p ag. mutations and to the gene boundaries. 3. (3pofnts) The A+TIG+C ratio of the strands of a DNA molecule are 0.13. . __. ' I 3 ' I a. What is the A+TIG+C ratio of the complementary strand? - " ' O i b. If the 0.13 referr d to the A+GXT+ ratio. what IS the ratio in the complementary strand? {00 Z 1 5 i1. ® c. What is the A+GIT+C ratio in a double-standed DNA m (a) above? /~ 0 ® , ...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online