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) ?

Which of the following uses hemoglobin to supply oxygen to other cells in the body? a. plasma b. platelets c. red blood cells d. white blood cells

A student plans to measure the circumference of a balloon at various temperatures to determine how temperature affects the volume of a gas. What is the independent variable in this experiment?

Is the formation of new individuals

Chromosomes that are similar in size, shape, and genetic content are called

What is the skeleton of an embryo mainly composed of?

When a organism dies, the substances in its body are what?

In SVT is there a pulse that you can feel or not?

Suppose that a large river separates two populations of mice. one population is all black, and the other all white. a beaver dam that is built allows the mice to cross the river. over time, many gray mice are born. what is this an example of?

Why is it important to secure the crime scene?

Which two characteristics describe all animals? A. multicellular and symmetrical B. multicellular and asymmetrical C. heterotrophic and multicellular D. heterotrophic and unicellular