The impermeability of cell plasma membranes is a major barrier to using drugs to kill tumor cells or affect cells transgenically. cpps are peptides that were discovered to have the ability to transport themselves (and even attached cargo) into cells. how they get into cells is still a mystery, but cpps all have multiple positively charged groups. which of the following membrane components are they most likely to be interacting with?
a. phospholipid heads
b. phospholipid tails
c. intrinsic membrane proteins
d. cholesterol

B. phospholipid heads

Explanation:

Phospholipid heads contain phosphate groups which are negatively. The positively charged CPPs would be attracted by the phospholipid heads via ion-ion interactions.  

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).