What visual evidence is a sign of creep

an ecoli strain is chromosomally lacZ - but a wildtype copy of entire lac operon is present on an F' plasmid which in turn has a penicillin resistant gene. now when ecoli is grown without penicillin, some colonies are penicillin sensitive and lac+.

A child was suffering from fever (38 ºC), cough, pharyngitis and his chest x-ray showed pneumonia at lower part of left lung. He was treated with penicillin and did not respond to treatment.

A researcher is interested in finding out if the amount of amylase, a digestive enzyme found in saliva responsible for digesting starch, varies from person to person.

How is it possible that regions thousands of base pairs from a promoter can impact transcription of that gene? A. DNA is capable of looping, bringing distant regions in the same proximity. B.

What is the term for different jobs that different cells perform in a multicellular organis

Whats the job of an environmental scientist

Whats a term for paired chromosomes

Complete the following rule if a child is different from both of their parents, the child must be

Would you expect to see more biodiversity among members of a phyla or among members of a class? why?

What is ameba and how does it move?