MIMM 211 Lecture 34: Microbial Genetics 2 + Case study review

· 2. The initial fluid entering the kidney

o disperses into the interstitium of the kidney

o enters the small intestine for readsorption

o is collected by the capsule

·

· 8. Birth is triggered by

o interaction of maternal and fetal hormones

o interaction of fetal hormones

o interaction of maternal hormones

· 10. The zygote divides rapidly due to

o maternal hormones

o fetal hormones

o its large size

o implantation

· 17. the loop of Henle uses a combination of

o active and passive transport

o arteries and veins

o actin and myosin

o valves and smooth muscle

· 29. Substances initiall secreted are readsorbed in the

o proximal convoluted tubule

o distal convoluted tubule

o collecting duct

· 50. Most H20 taken in by plants is used for

o circulation

o respiration

o digestion

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!