Where would the lac repressor be bound in a (nonmutant)

e. coli cell that is growing in low glucose and high lactose? (i = lac repressor gene; z, y, a = lac operon structural genes; p = lac promoter; o = lac operator) ?

What is an example of a homoglycan? What is an example of a heteroglycan?

Is making water a chemical or physical change?

Strep throat is a common human illness often caused by bacteria streptococcus pyogenes which term best classifies the colonies of streptococcus pyogenes in a person with strep throat

What is another name for a Fossil fule?

The sequence that best illustrates the flow of energy through an ecosystem is (1) sunlight → plant → wolf → rabbit (2) plant → sunlight → rabbit → wolf (3) sunlight → plant → rabbit → wolf (4) wolf → rabbit → plant → sunlight

One reason common names are not useful to biologists is that they ... A. are in Latin. B. can apply to more than one animal. C. are too long. D. require the use of a dichotomous key. what is the answer nd why?

A species of butterfly has alleles for wing color that are either blue or orange. When a blue butterfly and an orange butterfly mate, their offspring have wings that are both blue and orange. Explain the process through which wing color is expressed.

Low blood levels of oxygen can bring on? A. Sneezez B. Hiccups C. Coughs D. Sighs

How do human activities increase the occurrence of species extinction?

Describe Coriolis effect and explain why it affects ocean currents.