Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Biotechnology -Principles and Processes

Question:
Why DNA cannot pass through a cell membrane?
Options:
Hydrophobic nature .
Hydrophilic nature.
Size too big .
All of these.
Correct Answer:
Hydrophilic nature.
Explanation:
DNA cannot pass through a cell membrane due to its hydrophilic nature. Deoxyribonucleic acids (DNA) cannot pass through the cell membrane regardless of their size. DNA is a water-loving or hydrophilic molecule like the exterior of the cell membrane and therefore, it cannot pass through the phospholipid bilayer.