Question

2. What cellular structures must be disrupted in order to release DNA from (a) strawberry or banana cells (b) bacterial cells and (c) human tissue? (Hint: Think about what you learned about cell structure in Lesson 3, 'A Tour of the Cell.) RESPONSE:

Answer 1

QUESTION 1

(a)Since strawberry and banana cells are both plant cells, they posses cell wall, so we need to disrupt the cell wall, the plasma membrane and the nuclear envelope

(b)Bacterial cells also have cell wall but they lack of nuclear envelope, so we need to disrupt the cell wall and the plasma membrane

(c)Human tissue is composed by eukaryotic cells which do not have cell wall but they have plasma membrane and nuclear envelope. So, we need to disrupt the plasma membrane and the nuclear envelope. Of course, we need to disrupt all of the adipose tissue, proteins and fibers in the tissue but this will depends on the human tissue that be selected

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