Practice 2: Which answer best describes another function of the
cell membrane?
A. The cell membrane helps to protect only plant cells from larger
molecules
B. The selective barrier allows small molecules to enter and exit in animal and plant cells
C. Animals cells have as thick cell membrane to keep the cells rigid
D. The cell membrane keeps material from entering and exiting the cell

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?