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Give the levels of B-galactosidase activity (+ or -) expectedfor the following merodiploids for the lac operon.

Lactose Absent/ Lactose Present

1.) I+ P+ O+ Z- / I+ P- O+ Z+ _____ _____

2.) I+ P+ O+ Z- / I- P+ O+ Z+ ______ ______

3.) I+ P+ Oc z- / I+ P+ O+ Z+ ______ _____

4.) I- P+ Oc Z+ / I+ P+ O+ Z+ ______ _____

5.) I+ P+ Oc Z+ / Is P+ O+ Z+ ____ _____

Please explain!

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Tod Thiel
Tod ThielLv2
28 Sep 2019

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