Chapter 14, Problem 5U

Summary Introduction

Introduction:

DNA is a double-helical molecule in which the two strands face each other antagonistically that is in the opposite direction to each other. For the first time, it was discovered in human cells, and then, it was discovered in the sperms of fishes. It was discovered by Friedrich Miescher. He named the substance he discovered as “nuclein” since it was found in the nucleus. However, later on, it was found that it is acidic chemically. Hence, it was renamed as nucleic acid.