why young leave are prapared to get fine section give reasons
Answers
Answer:
Young leaves are preferred to get fine section for their tenderness and easy detection of DNA.
Explanation:
Fine sections of leaves are made to study their DNA content .
Mature leaves contain an excess of concentration of polysaccharides, polyphenols, proteins and secondary metabolites which makes it difficult to view the DNA under microscopes .
Mature leaves are usually rigid and pose difficulties in being cut into fine sections .
For fine section a leaf has to be first rolled and then cut into very fine slices. Young leaves are soft and tender compared to old leaves. They can be easily rolled and sliced into fine sections.
Young leaves are lighter in colour compared to mature leaves so they can be stained more distinctly and studied under the microscope.