Levene made his initial proposal in 1919, discrediting other suggestions that had been put forth about the structure of nucleic acids ... chemical components of the four bases and other nucleotide ...

Enzymes called aminoacyl-tRNA synthetases attach the correct amino acid ... stranded chemical structure with, in some cases, higher-order structures obtained through complementary base-pair ...

not nucleic acid, but by the late 1940s, DNA was largely accepted as the genetic molecule. Scientists still needed to figure out this molecule's structure to be sure, and to understand how it worked.

But James Watson and Francis Crick's claim was a valid one, for they had in fact discovered the structure of DNA, the chemical that encodes ... a nucleic acid, carries genetic information.

The speed of a chemical reaction is affected by temperature ... be calculated easily if you learn two formula triangles. Acids and bases The pH scale measures the acidity or alkalinity of a ...

Nucleic acids are complex biological molecules that ... strands of nucleotides pair up through hydrogen bonds between the bases (A with T and G with C) to form the iconic double helix structure. RNA ...

A pH or acid-base indicator is a compound ... a color change can also be used as evidence that a chemical reaction has occurred. Students will explore what happens during neutralization by using a ...

Non-Watson-Crick base pairs can play important roles in RNA secondary structure, protein-nucleic acid interactions, and genetic recoding events. The Role of Base Pairs in Genetics Base pairs play a ...