Answer:
C
Explanation:
The cell wall in only present in plant cells, not animal cells. Hence, the fact that plant cells are rectangular while animal cells are more circular.
Answer:
The correct answer would be a. Fragments of DNA that have desired genes are isolated to form recombination DNA for use in a host. Genetic engineering refers to the direct manipulation or modification of the desired gene in a cell in order to produce novel or improved organism.
Explanation:
The cell wall protects a plant cell by giving it protection and support.
The cell wall is made of cellulose which is a specialized sugar that helps give the wall structure and support to protect the inner part of the cell.