Statement 1: DNA synthesis always proceeds in the 5' to 3' direction.

The pentose phosphate pathway takes place exclusively in the cytosol of the cell. The cytosol, also known as the cytoplasmic matrix, is the intracellular fluid that surrounds all the organelles within ...

QUICK ANSWER: Nucleosides and nucleotides fundamentally differ in their chemical composition. The main difference between nucleosides and nucleotides is the presence of phosphate groups. Nucleosides ...

People are still debating whether the mRNA from COVID-19 vaccines remains in the body longer than it should. Some say it lingers and causes harm, others say that idea just doesn’t hold up. A new ...

Why did life choose ribose? A new study uncovers a chemical advantage that may have given this sugar a head start in the origins of life. Credit: Stock Scripps scientists show that ribose may have ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. The zinc finger (ZnF) motif is one of the most common nucleic acid binding motifs in ...

In living organisms today, complex molecules like RNA and DNA are constructed with the help of enzymes. So how did these molecules form before life (and enzymes) existed? Why did some molecules end up ...

The sugar ribose is more quickly phosphorylated compared to other sugars with the same chemical formula but a different shape. This selective phosphorylation could explain how ribose became the sugar ...

Phosphorus, the vastly underappreciated 15 th element on the periodic table, is essential to all life as we know it. Phosphorus is the structural backbone of the phosphate nucleotides in DNA and RNA, ...